version 1.293, 2004/06/12 23:43:14 |
version 1.294, 2004/06/16 01:06:19 |
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<title>OpenBSD Security</title> |
<title>OpenBSD Security</title> |
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<h2><font color=#e00000>Security</font><hr></h2> |
<h2><font color="#e00000">Security</font></h2> |
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<a href=#goals>Security goals of the Project</a>.<br> |
<a href="#goals">Security goals of the Project</a>.<br> |
<a href=#disclosure>Full Disclosure policy</a>.<br> |
<a href="#disclosure">Full Disclosure policy</a>.<br> |
<a href=#process>Source code auditing process</a>.<br> |
<a href="#process">Source code auditing process</a>.<br> |
<a href=#default>"Secure by Default"</a>.<br> |
<a href="#default">"Secure by Default"</a>.<br> |
<a href=#crypto>Use of Cryptography</a>.<br> |
<a href="#crypto">Use of Cryptography</a>.<br> |
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<p> |
<a href=#watching>Watching changes</a>.<br> |
<a href="#watching">Watching changes</a>.<br> |
<a href=#reporting>Reporting security issues</a>.<br> |
<a href="#reporting">Reporting security issues</a>.<br> |
<a href=#papers>Further Reading</a><br> |
<a href="#papers">Further Reading</a><br> |
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<a name="goals"></a> |
<a name="goals"></a> |
<li><h3><font color=#e00000>Goal</font></h3><p> |
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<li><h3><font color="#e00000">Goal</font></h3><p> |
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OpenBSD believes in strong security. Our aspiration is to be NUMBER |
OpenBSD believes in strong security. Our aspiration is to be NUMBER |
ONE in the industry for security (if we are not already there). Our |
ONE in the industry for security (if we are not already there). Our |
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fixing security problems.<p> |
fixing security problems.<p> |
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<a name="disclosure"></a> |
<a name="disclosure"></a> |
<li><h3><font color=#e00000>Full Disclosure</font></h3><p> |
<li><h3><font color="#e00000">Full Disclosure</font></h3><p> |
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Like many readers of the |
Like many readers of the |
<a href="http://online.securityfocus.com/archive/1"> |
<a href="http://online.securityfocus.com/archive/1"> |
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people who really care about security.<p> |
people who really care about security.<p> |
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<a name="process"></a> |
<a name="process"></a> |
<li><h3><font color=#e00000>Audit Process</font></h3><p> |
<li><h3><font color="#e00000">Audit Process</font></h3><p> |
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Our security auditing team typically has between six and twelve |
Our security auditing team typically has between six and twelve |
members who continue to search for and fix new security holes. We |
members who continue to search for and fix new security holes. We |
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<a name="newtech"></a> |
<a name="newtech"></a> |
<li><h3><font color=#e00000>New Technologies</font></h3><p> |
<li><h3><font color="#e00000">New Technologies</font></h3><p> |
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As we audit source code, we often invent new ways of solving problems. |
As we audit source code, we often invent new ways of solving problems. |
Sometimes these ideas have been used before in some random application |
Sometimes these ideas have been used before in some random application |
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</ul> |
</ul> |
<p> |
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<li><h3><font color=#e00000>The Reward</font></h3><p> |
<li><h3><font color="#e00000">The Reward</font></h3><p> |
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Our proactive auditing process has really paid off. Statements like |
Our proactive auditing process has really paid off. Statements like |
``This problem was fixed in OpenBSD about 6 months ago'' have become |
``This problem was fixed in OpenBSD about 6 months ago'' have become |
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to find and fix new security flaws.<p> |
to find and fix new security flaws.<p> |
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<a name="default"></a> |
<a name="default"></a> |
<li><h3><font color=#e00000>"Secure by Default"</font></h3><p> |
<li><h3><font color="#e00000">"Secure by Default"</font></h3><p> |
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To ensure that novice users of OpenBSD do not need to become security |
To ensure that novice users of OpenBSD do not need to become security |
experts overnight (a viewpoint which other vendors seem to have), we |
experts overnight (a viewpoint which other vendors seem to have), we |
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within minutes after their first install.<p> |
within minutes after their first install.<p> |
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<a name="crypto"></a> |
<a name="crypto"></a> |
<li><h3><font color=#e00000>Cryptography</font></h3><p> |
<li><h3><font color="#e00000">Cryptography</font></h3><p> |
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And of course, since the OpenBSD project is based in Canada, it is possible |
And of course, since the OpenBSD project is based in Canada, it is possible |
for us to integrate cryptography. For more information, read the page |
for us to integrate cryptography. For more information, read the page |
outlining <a href=crypto.html>what we have done with cryptography</a>.</p> |
outlining <a href=crypto.html>what we have done with cryptography</a>.</p> |
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<li><h3><font color=#e00000>Advisories</font></h3><p> |
<li><h3><font color="#e00000">Advisories</font></h3><p> |
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<li> |
<li> |
<a name="35"></a> |
<a name="35"></a> |
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<h3><font color=#e00000>OpenBSD 3.5 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.5 Security Advisories</font></h3> |
These are the OpenBSD 3.5 advisories -- all these problems are solved |
These are the OpenBSD 3.5 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a> and the |
in <a href=anoncvs.html>OpenBSD current</a> and the |
<a href=stable.html>patch branch</a>. |
<a href=stable.html>patch branch</a>. |
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<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata.html#httpd> Jun 12, 2004: |
<li><a href="errata.html#httpd"> Jun 12, 2004: |
Multiple vulnerabilites have been found in httpd(8) / mod_ssl.</a> |
Multiple vulnerabilites have been found in httpd(8) / mod_ssl.</a> |
<li><a href=errata.html#isakmpd> Jun 10, 2004: |
<li><a href="errata.html#isakmpd"> Jun 10, 2004: |
isakmpd(8) still has issues with unauthorized SA deletion, |
isakmpd(8) still has issues with unauthorized SA deletion, |
an attacker can delete IPsec tunnels at will.</a> |
an attacker can delete IPsec tunnels at will.</a> |
<li><a href=errata.html#cvs3> Jun 9, 2004: |
<li><a href="errata.html#cvs3"> Jun 9, 2004: |
Multiple remote vulnerabilities have been found in the cvs(1) |
Multiple remote vulnerabilities have been found in the cvs(1) |
server which can be used by CVS clients to crash or execute |
server which can be used by CVS clients to crash or execute |
arbitrary code on the server.</a> |
arbitrary code on the server.</a> |
<li><a href=errata.html#kerberos> May 30, 2004: |
<li><a href="errata.html#kerberos"> May 30, 2004: |
kdc(8) performs inadequate checking of request fields, leading |
kdc(8) performs inadequate checking of request fields, leading |
to the possibility of principal impersonation from other |
to the possibility of principal impersonation from other |
Kerberos realms if they are trusted with a cross-realm trust.</a> |
Kerberos realms if they are trusted with a cross-realm trust.</a> |
<li><a href=errata.html#xdm> May 26, 2004: |
<li><a href="errata.html#xdm"> May 26, 2004: |
xdm(1) ignores the requestPort resource and creates a |
xdm(1) ignores the requestPort resource and creates a |
listening socket regardless of the setting in xdm-config.</a> |
listening socket regardless of the setting in xdm-config.</a> |
<li><a href=errata.html#cvs2> May 20, 2004: |
<li><a href="errata.html#cvs2"> May 20, 2004: |
A buffer overflow in the cvs(1) server has been found, |
A buffer overflow in the cvs(1) server has been found, |
which can be used by CVS clients to execute arbitrary code on |
which can be used by CVS clients to execute arbitrary code on |
the server.</a> |
the server.</a> |
<li><a href=errata.html#procfs> May 13, 2004: |
<li><a href="errata.html#procfs"> May 13, 2004: |
Integer overflow problems were found in procfs, allowing |
Integer overflow problems were found in procfs, allowing |
reading of arbitrary kernel memory.</a> |
reading of arbitrary kernel memory.</a> |
<li><a href=errata.html#cvs> May 5, 2004: |
<li><a href="errata.html#cvs"> May 5, 2004: |
Pathname validation problems have been found in cvs(1), |
Pathname validation problems have been found in cvs(1), |
allowing clients and servers access to files outside the |
allowing clients and servers access to files outside the |
repository or local CVS tree.</a> |
repository or local CVS tree.</a> |
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<li> |
<li> |
<a name="34"></a> |
<a name="34"></a> |
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<h3><font color=#e00000>OpenBSD 3.4 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.4 Security Advisories</font></h3> |
These are the OpenBSD 3.4 advisories -- all these problems are solved |
These are the OpenBSD 3.4 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a> and the |
in <a href="anoncvs.html">OpenBSD current</a> and the |
<a href=stable.html>patch branch</a>. |
<a href="stable.html">patch branch</a>. |
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<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata34.html#httpd3> Jun 12, 2004: |
<li><a href="errata34.html#httpd3"> Jun 12, 2004: |
Multiple vulnerabilites have been found in httpd(8) / mod_ssl.</a> |
Multiple vulnerabilites have been found in httpd(8) / mod_ssl.</a> |
<li><a href=errata34.html#isakmpd3> Jun 10, 2004: |
<li><a href="errata34.html#isakmpd3"> Jun 10, 2004: |
isakmpd(8) still has issues with unauthorized SA deletion, |
isakmpd(8) still has issues with unauthorized SA deletion, |
an attacker can delete IPsec tunnels at will.</a> |
an attacker can delete IPsec tunnels at will.</a> |
<li><a href=errata34.html#cvs3> Jun 9, 2004: |
<li><a href="errata34.html#cvs3"> Jun 9, 2004: |
Multiple remote vulnerabilities have been found in the cvs(1) |
Multiple remote vulnerabilities have been found in the cvs(1) |
server which can be used by CVS clients to crash or execute |
server which can be used by CVS clients to crash or execute |
arbitrary code on the server.</a> |
arbitrary code on the server.</a> |
<li><a href=errata34.html#kerberos> May 30, 2004: |
<li><a href="errata34.html#kerberos"> May 30, 2004: |
kdc(8) performs inadequate checking of request fields, leading |
kdc(8) performs inadequate checking of request fields, leading |
to the possibility of principal impersonation from other |
to the possibility of principal impersonation from other |
Kerberos realms if they are trusted with a cross-realm trust.</a> |
Kerberos realms if they are trusted with a cross-realm trust.</a> |
<li><a href=errata34.html#cvs2> May 20, 2004: |
<li><a href="errata34.html#cvs2"> May 20, 2004: |
A buffer overflow in the cvs(1) server has been found, |
A buffer overflow in the cvs(1) server has been found, |
which can be used by CVS clients to execute arbitrary code on |
which can be used by CVS clients to execute arbitrary code on |
the server.</a> |
the server.</a> |
<li><a href=errata34.html#procfs> May 13, 2004: |
<li><a href="errata34.html#procfs"> May 13, 2004: |
Integer overflow problems were found in procfs, allowing |
Integer overflow problems were found in procfs, allowing |
reading of arbitrary kernel memory.</a> |
reading of arbitrary kernel memory.</a> |
<li><a href=errata34.html#cvs> May 5, 2004: |
<li><a href="errata34.html#cvs"> May 5, 2004: |
Pathname validation problems have been found in cvs(1), |
Pathname validation problems have been found in cvs(1), |
allowing clients and servers access to files outside the |
allowing clients and servers access to files outside the |
repository or local CVS tree.</a> |
repository or local CVS tree.</a> |
<li><a href=errata34.html#openssl> March 17, 2004: |
<li><a href="errata34.html#openssl"> March 17, 2004: |
A missing check for a NULL-pointer dereference may allow a |
A missing check for a NULL-pointer dereference may allow a |
remote attacker to crash applications using OpenSSL.</a> |
remote attacker to crash applications using OpenSSL.</a> |
<li><a href=errata34.html#isakmpd2> March 17, 2004: |
<li><a href="errata34.html#isakmpd2"> March 17, 2004: |
Defects in the payload validation and processing functions of |
Defects in the payload validation and processing functions of |
isakmpd have been discovered. An attacker could send malformed |
isakmpd have been discovered. An attacker could send malformed |
ISAKMP messages and cause isakmpd to crash or to loop endlessly.</a> |
ISAKMP messages and cause isakmpd to crash or to loop endlessly.</a> |
<li><a href=errata34.html#httpd2> March 13, 2004: |
<li><a href="errata34.html#httpd2"> March 13, 2004: |
Due to a bug in the parsing of Allow/Deny rules for httpd(8)'s |
Due to a bug in the parsing of Allow/Deny rules for httpd(8)'s |
access module, using IP addresses without a netmask on big endian |
access module, using IP addresses without a netmask on big endian |
64-bit platforms causes the rules to fail to match.</a> |
64-bit platforms causes the rules to fail to match.</a> |
<li><a href=errata34.html#ip6> February 8, 2004: |
<li><a href="errata34.html#ip6"> February 8, 2004: |
An IPv6 MTU handling problem exists that could be used by an |
An IPv6 MTU handling problem exists that could be used by an |
attacker to cause a denial of service attack.</a> |
attacker to cause a denial of service attack.</a> |
<li><a href=errata34.html#sysvshm> February 5, 2004: |
<li><a href="errata34.html#sysvshm"> February 5, 2004: |
A reference counting bug in shmat(2) could be used to write to |
A reference counting bug in shmat(2) could be used to write to |
kernel memory under certain circumstances.</a> |
kernel memory under certain circumstances.</a> |
<li><a href=errata34.html#isakmpd>January 13, 2004: |
<li><a href="errata34.html#isakmpd">January 13, 2004: |
Several message handling flaws in isakmpd(8) have been reported |
Several message handling flaws in isakmpd(8) have been reported |
by Thomas Walpuski.</a> |
by Thomas Walpuski.</a> |
<li><a href=errata34.html#ibcs2>November 17, 2003: |
<li><a href="errata34.html#ibcs2">November 17, 2003: |
It may be possible for a local user to overrun the stack in |
It may be possible for a local user to overrun the stack in |
compat_ibcs2(8) and cause a kernel panic.</a> |
compat_ibcs2(8) and cause a kernel panic.</a> |
<li><a href=errata34.html#asn1>November 1, 2003: |
<li><a href="errata34.html#asn1">November 1, 2003: |
The use of certain ASN.1 encodings or malformed public keys may |
The use of certain ASN.1 encodings or malformed public keys may |
allow an attacker to mount a denial of service attack against |
allow an attacker to mount a denial of service attack against |
applications linked with ssl(3).</a> |
applications linked with ssl(3).</a> |
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<li> |
<li> |
<a name="33"></a> |
<a name="33"></a> |
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<h3><font color=#e00000>OpenBSD 3.3 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.3 Security Advisories</font></h3> |
These are the OpenBSD 3.3 advisories -- all these problems are solved |
These are the OpenBSD 3.3 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a> for 3.3 is no longer being maintained, |
<a href="stable.html">patch branch</a> for 3.3 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata33.html#cvs> May 5, 2004: |
<li><a href="errata33.html#cvs"> May 5, 2004: |
Pathname validation problems have been found in cvs(1), |
Pathname validation problems have been found in cvs(1), |
allowing clients and servers access to files outside the |
allowing clients and servers access to files outside the |
repository or local CVS tree.</a> |
repository or local CVS tree.</a> |
<li><a href=errata33.html#openssl> March 17, 2004: |
<li><a href="errata33.html#openssl"> March 17, 2004: |
A missing check for a NULL-pointer dereference may allow a |
A missing check for a NULL-pointer dereference may allow a |
remote attacker to crash applications using OpenSSL.</a> |
remote attacker to crash applications using OpenSSL.</a> |
<li><a href=errata33.html#isakmpd2> March 17, 2004: |
<li><a href="errata33.html#isakmpd2"> March 17, 2004: |
Defects in the payload validation and processing functions of |
Defects in the payload validation and processing functions of |
isakmpd have been discovered. An attacker could send malformed |
isakmpd have been discovered. An attacker could send malformed |
ISAKMP messages and cause isakmpd to crash or to loop endlessly.</a> |
ISAKMP messages and cause isakmpd to crash or to loop endlessly.</a> |
<li><a href=errata33.html#httpd2> March 13, 2004: |
<li><a href="errata33.html#httpd2"> March 13, 2004: |
Due to a bug in the parsing of Allow/Deny rules for httpd(8)'s |
Due to a bug in the parsing of Allow/Deny rules for httpd(8)'s |
access module, using IP addresses without a netmask on big endian |
access module, using IP addresses without a netmask on big endian |
64-bit platforms causes the rules to fail to match.</a> |
64-bit platforms causes the rules to fail to match.</a> |
<li><a href=errata33.html#ip6> February 8, 2004: |
<li><a href="errata33.html#ip6"> February 8, 2004: |
An IPv6 MTU handling problem exists that could be used by an |
An IPv6 MTU handling problem exists that could be used by an |
attacker to cause a denial of service attack.</a> |
attacker to cause a denial of service attack.</a> |
<li><a href=errata33.html#sysvshm> February 5, 2004: |
<li><a href="errata33.html#sysvshm"> February 5, 2004: |
A reference counting bug in shmat(2) could be used to write to |
A reference counting bug in shmat(2) could be used to write to |
kernel memory under certain circumstances.</a> |
kernel memory under certain circumstances.</a> |
<li><a href=errata33.html#isakmpd>January 15, 2004: |
<li><a href="errata33.html#isakmpd">January 15, 2004: |
Several message handling flaws in isakmpd(8) have been reported |
Several message handling flaws in isakmpd(8) have been reported |
by Thomas Walpuski.</a> |
by Thomas Walpuski.</a> |
<li><a href=errata33.html#ibcs2>November 17, 2003: |
<li><a href="errata33.html#ibcs2">November 17, 2003: |
It may be possible for a local user to execute arbitrary code |
It may be possible for a local user to execute arbitrary code |
resulting in escalation of privileges due to a stack overrun |
resulting in escalation of privileges due to a stack overrun |
in compat_ibcs2(8).</a> |
in compat_ibcs2(8).</a> |
<li><a href=errata33.html#asn1>October 1, 2003: |
<li><a href="errata33.html#asn1">October 1, 2003: |
The use of certain ASN.1 encodings or malformed public keys may |
The use of certain ASN.1 encodings or malformed public keys may |
allow an attacker to mount a denial of service attack against |
allow an attacker to mount a denial of service attack against |
applications linked with ssl(3).</a> |
applications linked with ssl(3).</a> |
<li><a href=errata33.html#pfnorm>September 24, 2003: |
<li><a href="errata33.html#pfnorm">September 24, 2003: |
Access of freed memory in pf(4) could be used to |
Access of freed memory in pf(4) could be used to |
remotely panic a machine using scrub rules.</a> |
remotely panic a machine using scrub rules.</a> |
<li><a href=errata33.html#sendmail>September 17, 2003: |
<li><a href="errata33.html#sendmail">September 17, 2003: |
A buffer overflow in the address parsing in |
A buffer overflow in the address parsing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata33.html#sshbuffer>September 16, 2003: |
<li><a href="errata33.html#sshbuffer">September 16, 2003: |
OpenSSH versions prior to 3.7 contains a buffer management error |
OpenSSH versions prior to 3.7 contains a buffer management error |
that is potentially exploitable.</a> |
that is potentially exploitable.</a> |
<li><a href=errata33.html#sysvsem>September 10, 2003: |
<li><a href="errata33.html#sysvsem">September 10, 2003: |
Root may be able to reduce the security level by taking advantage of |
Root may be able to reduce the security level by taking advantage of |
an integer overflow when the semaphore limits are made very large.</a> |
an integer overflow when the semaphore limits are made very large.</a> |
<li><a href=errata33.html#semget>August 20, 2003: |
<li><a href="errata33.html#semget">August 20, 2003: |
An improper bounds check in the kernel may allow a local user |
An improper bounds check in the kernel may allow a local user |
to panic the kernel.</a> |
to panic the kernel.</a> |
<li><a href=errata33.html#realpath>August 4, 2003: |
<li><a href="errata33.html#realpath">August 4, 2003: |
An off-by-one error exists in the C library function realpath(3) |
An off-by-one error exists in the C library function realpath(3) |
may allow an attacker to gain escalated privileges.</a> |
may allow an attacker to gain escalated privileges.</a> |
</ul> |
</ul> |
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<li> |
<li> |
<a name="32"></a> |
<a name="32"></a> |
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<h3><font color=#e00000>OpenBSD 3.2 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.2 Security Advisories</font></h3> |
These are the OpenBSD 3.2 advisories -- all these problems are solved |
These are the OpenBSD 3.2 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a> for 3.2 is no longer being maintained, |
<a href="stable.html">patch branch</a> for 3.2 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata32.html#asn1>October 1, 2003: |
<li><a href="errata32.html#asn1">October 1, 2003: |
The use of certain ASN.1 encodings or malformed public keys may |
The use of certain ASN.1 encodings or malformed public keys may |
allow an attacker to mount a denial of service attack against |
allow an attacker to mount a denial of service attack against |
applications linked with ssl(3). This does not affect OpenSSH.</a> |
applications linked with ssl(3). This does not affect OpenSSH.</a> |
<li><a href=errata32.html#pfnorm>September 24, 2003: |
<li><a href="errata32.html#pfnorm">September 24, 2003: |
Access of freed memory in pf(4) could be used to |
Access of freed memory in pf(4) could be used to |
remotely panic a machine using scrub rules.</a> |
remotely panic a machine using scrub rules.</a> |
<li><a href=errata32.html#sendmail4>September 17, 2003: |
<li><a href="errata32.html#sendmail4">September 17, 2003: |
A buffer overflow in the address parsing in |
A buffer overflow in the address parsing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata32.html#sshbuffer>September 16, 2003: |
<li><a href="errata32.html#sshbuffer">September 16, 2003: |
OpenSSH versions prior to 3.7 contains a buffer management error |
OpenSSH versions prior to 3.7 contains a buffer management error |
that is potentially exploitable.</a> |
that is potentially exploitable.</a> |
<li><a href=errata32.html#sendmail3>August 25, 2003: |
<li><a href="errata32.html#sendmail3">August 25, 2003: |
Fix for a potential security issue in |
Fix for a potential security issue in |
sendmail(8) with respect to DNS maps.</a> |
sendmail(8) with respect to DNS maps.</a> |
<li><a href=errata32.html#realpath>August 4, 2003: |
<li><a href="errata32.html#realpath">August 4, 2003: |
An off-by-one error exists in the C library function realpath(3) |
An off-by-one error exists in the C library function realpath(3) |
may allow an attacker to gain escalated privileges.</a> |
may allow an attacker to gain escalated privileges.</a> |
<li><a href=errata32.html#sendmail2>March 31, 2003: |
<li><a href="errata32.html#sendmail2">March 31, 2003: |
A buffer overflow in the address parsing in |
A buffer overflow in the address parsing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata32.html#kerberos>March 24, 2003: |
<li><a href="errata32.html#kerberos">March 24, 2003: |
A cryptographic weaknesses in the Kerberos v4 protocol can be |
A cryptographic weaknesses in the Kerberos v4 protocol can be |
exploited on Kerberos v5 as well.</a> |
exploited on Kerberos v5 as well.</a> |
<li><a href=errata32.html#kpr>March 19, 2003: |
<li><a href="errata32.html#kpr">March 19, 2003: |
OpenSSL is vulnerable to an extension of the ``Bleichenbacher'' attack |
OpenSSL is vulnerable to an extension of the ``Bleichenbacher'' attack |
designed by Czech researchers Klima, Pokorny and Rosa.</a> |
designed by Czech researchers Klima, Pokorny and Rosa.</a> |
<li><a href=errata32.html#blinding>March 18, 2003: |
<li><a href="errata32.html#blinding">March 18, 2003: |
Various SSL and TLS operations in OpenSSL are vulnerable to |
Various SSL and TLS operations in OpenSSL are vulnerable to |
timing attacks.</a> |
timing attacks.</a> |
<li><a href=errata32.html#lprm>March 5, 2003: |
<li><a href="errata32.html#lprm">March 5, 2003: |
A buffer overflow in lprm(1) may allow an attacker to elevate |
A buffer overflow in lprm(1) may allow an attacker to elevate |
privileges to user daemon.</a>. |
privileges to user daemon.</a>. |
<li><a href=errata32.html#sendmail>March 3, 2003: |
<li><a href="errata32.html#sendmail">March 3, 2003: |
A buffer overflow in the envelope comments processing in |
A buffer overflow in the envelope comments processing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata32.html#httpd>February 25, 2003: |
<li><a href="errata32.html#httpd">February 25, 2003: |
httpd(8) leaks file inode numbers via ETag header as well as |
httpd(8) leaks file inode numbers via ETag header as well as |
child PIDs in multipart MIME boundary generation. This could |
child PIDs in multipart MIME boundary generation. This could |
lead, for example, to NFS exploitation because it uses inode |
lead, for example, to NFS exploitation because it uses inode |
numbers as part of the file handle.</a> |
numbers as part of the file handle.</a> |
<li><a href=errata32.html#ssl>February 22, 2003: |
<li><a href="errata32.html#ssl">February 22, 2003: |
In ssl(8) an information leak can occur via timing by performing |
In ssl(8) an information leak can occur via timing by performing |
a MAC computation even if incorrect block cipher padding has |
a MAC computation even if incorrect block cipher padding has |
been found, this is a countermeasure. Also, check for negative |
been found, this is a countermeasure. Also, check for negative |
sizes, in allocation routines.</a> |
sizes, in allocation routines.</a> |
<li><a href=errata32.html#cvs>January 20, 2003: |
<li><a href="errata32.html#cvs">January 20, 2003: |
A double free exists in cvs(1) that could lead to privilege |
A double free exists in cvs(1) that could lead to privilege |
escalation for cvs configurations where the cvs command is |
escalation for cvs configurations where the cvs command is |
run as a privileged user.</a> |
run as a privileged user.</a> |
<li><a href=errata32.html#named>November 14, 2002: |
<li><a href="errata32.html#named">November 14, 2002: |
A buffer overflow exists in named(8) that could lead to a |
A buffer overflow exists in named(8) that could lead to a |
remote crash or code execution as user named in a chroot jail.</a> |
remote crash or code execution as user named in a chroot jail.</a> |
<li><a href=errata32.html#pool>November 6, 2002: |
<li><a href="errata32.html#pool">November 6, 2002: |
A logic error in the pool kernel memory allocator could cause |
A logic error in the pool kernel memory allocator could cause |
memory corruption in low-memory situations, causing the system |
memory corruption in low-memory situations, causing the system |
to crash.</a> |
to crash.</a> |
<li><a href=errata32.html#smrsh>November 6, 2002: |
<li><a href="errata32.html#smrsh">November 6, 2002: |
An attacker can bypass smrsh(8)'s restrictions and execute |
An attacker can bypass smrsh(8)'s restrictions and execute |
arbitrary commands with the privileges of his own account.</a> |
arbitrary commands with the privileges of his own account.</a> |
<li><a href=errata32.html#pfbridge>November 6, 2002: |
<li><a href="errata32.html#pfbridge">November 6, 2002: |
Network bridges running pf with scrubbing enabled could cause |
Network bridges running pf with scrubbing enabled could cause |
mbuf corruption, causing the system to crash.</a> |
mbuf corruption, causing the system to crash.</a> |
<li><a href=errata32.html#kadmin>October 21, 2002: |
<li><a href="errata32.html#kadmin">October 21, 2002: |
A buffer overflow can occur in the kadmind(8) daemon, leading |
A buffer overflow can occur in the kadmind(8) daemon, leading |
to possible remote crash or exploit.</a> |
to possible remote crash or exploit.</a> |
</ul> |
</ul> |
|
|
<li> |
<li> |
<a name="31"></a> |
<a name="31"></a> |
|
|
<h3><font color=#e00000>OpenBSD 3.1 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.1 Security Advisories</font></h3> |
These are the OpenBSD 3.1 advisories -- all these problems are solved |
These are the OpenBSD 3.1 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a> for 3.1 is no longer being maintained, |
<a href="stable.html">patch branch</a> for 3.1 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata31.html#sendmail2>March 31, 2003: |
<li><a href="errata31.html#sendmail2">March 31, 2003: |
A buffer overflow in the address parsing in |
A buffer overflow in the address parsing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata31.html#kerberos>March 24, 2003: |
<li><a href="errata31.html#kerberos">March 24, 2003: |
A cryptographic weaknesses in the Kerberos v4 protocol can be |
A cryptographic weaknesses in the Kerberos v4 protocol can be |
exploited on Kerberos v5 as well.</a> |
exploited on Kerberos v5 as well.</a> |
<li><a href=errata31.html#kpr>March 19, 2003: |
<li><a href="errata31.html#kpr">March 19, 2003: |
OpenSSL is vulnerable to an extension of the ``Bleichenbacher'' attack |
OpenSSL is vulnerable to an extension of the ``Bleichenbacher'' attack |
designed by Czech researchers Klima, Pokorny and Rosa.</a> |
designed by Czech researchers Klima, Pokorny and Rosa.</a> |
<li><a href=errata31.html#blinding>March 18, 2003: |
<li><a href="errata31.html#blinding">March 18, 2003: |
Various SSL and TLS operations in OpenSSL are vulnerable to |
Various SSL and TLS operations in OpenSSL are vulnerable to |
timing attacks.</a> |
timing attacks.</a> |
<li><a href=errata31.html#lprm>March 4, 2003: |
<li><a href="errata31.html#lprm">March 4, 2003: |
A buffer overflow in lprm(1) may allow an attacker to gain |
A buffer overflow in lprm(1) may allow an attacker to gain |
root privileges.</a> |
root privileges.</a> |
<li><a href=errata31.html#sendmail>March 3, 2003: |
<li><a href="errata31.html#sendmail">March 3, 2003: |
A buffer overflow in the envelope comments processing in |
A buffer overflow in the envelope comments processing in |
sendmail(8) may allow an attacker to gain root privileges.</a> |
sendmail(8) may allow an attacker to gain root privileges.</a> |
<li><a href=errata31.html#ssl2>February 23, 2003: |
<li><a href="errata31.html#ssl2">February 23, 2003: |
In ssl(8) an information leak can occur via timing by performing |
In ssl(8) an information leak can occur via timing by performing |
a MAC computation even if incorrect block cipher padding has |
a MAC computation even if incorrect block cipher padding has |
been found, this is a countermeasure. Also, check for negative |
been found, this is a countermeasure. Also, check for negative |
sizes, in allocation routines.</a> |
sizes, in allocation routines.</a> |
<li><a href=errata31.html#cvs>January 20, 2003: |
<li><a href="errata31.html#cvs">January 20, 2003: |
A double free exists in cvs(1) that could lead to privilege |
A double free exists in cvs(1) that could lead to privilege |
escalation for cvs configurations where the cvs command is |
escalation for cvs configurations where the cvs command is |
run as a privileged user. |
run as a privileged user</a>. |
<li><a href=errata31.html#named>November 14, 2002: |
<li><a href="errata31.html#named">November 14, 2002: |
A buffer overflow exists in named(8) that could lead to a |
A buffer overflow exists in named(8) that could lead to a |
remote crash or code execution as user named in a chroot jail.</a> |
remote crash or code execution as user named in a chroot jail.</a> |
<li><a href=errata31.html#kernresource>November 6, 2002: |
<li><a href="errata31.html#kernresource">November 6, 2002: |
Incorrect argument checking in the getitimer(2) system call |
Incorrect argument checking in the getitimer(2) system call |
may allow an attacker to crash the system.</a> |
may allow an attacker to crash the system.</a> |
<li><a href=errata31.html#smrsh>November 6, 2002: |
<li><a href="errata31.html#smrsh">November 6, 2002: |
An attacker can bypass smrsh(8)'s restrictions and execute |
An attacker can bypass smrsh(8)'s restrictions and execute |
arbitrary commands with the privileges of his own account.</a> |
arbitrary commands with the privileges of his own account.</a> |
<li><a href=errata31.html#kadmin>October 21, 2002: |
<li><a href="errata31.html#kadmin">October 21, 2002: |
A buffer overflow can occur in the kadmind(8) daemon, leading |
A buffer overflow can occur in the kadmind(8) daemon, leading |
to possible remote crash or exploit.</a> |
to possible remote crash or exploit.</a> |
<li><a href=errata31.html#kerntime>October 2, 2002: |
<li><a href="errata31.html#kerntime">October 2, 2002: |
Incorrect argument checking in the setitimer(2) system call |
Incorrect argument checking in the setitimer(2) system call |
may allow an attacker to write to kernel memory.</a> |
may allow an attacker to write to kernel memory.</a> |
<li><a href=errata31.html#scarg>August 11, 2002: |
<li><a href="errata31.html#scarg">August 11, 2002: |
An insufficient boundary check in the select system call |
An insufficient boundary check in the select system call |
allows an attacker to overwrite kernel memory and execute arbitrary code |
allows an attacker to overwrite kernel memory and execute arbitrary code |
in kernel context.</a> |
in kernel context.</a> |
<li><a href=errata31.html#ssl>July 30, 2002: |
<li><a href="errata31.html#ssl">July 30, 2002: |
Several remote buffer overflows can occur in the SSL2 server and SSL3 |
Several remote buffer overflows can occur in the SSL2 server and SSL3 |
client of the ssl(8) library, as in the ASN.1 parser code in the |
client of the ssl(8) library, as in the ASN.1 parser code in the |
crypto(3) library, all of them being potentially remotely |
crypto(3) library, all of them being potentially remotely |
exploitable.</a> |
exploitable.</a> |
<li><a href=errata31.html#xdr>July 29, 2002: |
<li><a href="errata31.html#xdr">July 29, 2002: |
A buffer overflow can occur in the xdr_array(3) RPC code, leading to |
A buffer overflow can occur in the xdr_array(3) RPC code, leading to |
possible remote crash.</a> |
possible remote crash.</a> |
<li><a href=errata31.html#pppd>July 29, 2002: |
<li><a href="errata31.html#pppd">July 29, 2002: |
A race condition exists in the pppd(8) daemon which may cause it to |
A race condition exists in the pppd(8) daemon which may cause it to |
alter the file permissions of an arbitrary file.</a> |
alter the file permissions of an arbitrary file.</a> |
<li><a href=errata31.html#isakmpd>July 5, 2002: |
<li><a href="errata31.html#isakmpd">July 5, 2002: |
Receiving IKE payloads out of sequence can cause isakmpd(8) to |
Receiving IKE payloads out of sequence can cause isakmpd(8) to |
crash.</a> |
crash.</a> |
<li><a href=errata31.html#ktrace>June 27, 2002: |
<li><a href="errata31.html#ktrace">June 27, 2002: |
The kernel would let any user ktrace set[ug]id processes.</a> |
The kernel would let any user ktrace set[ug]id processes.</a> |
<li><a href=errata31.html#modssl>June 26, 2002: |
<li><a href="errata31.html#modssl">June 26, 2002: |
A buffer overflow can occur in the .htaccess parsing code in |
A buffer overflow can occur in the .htaccess parsing code in |
mod_ssl httpd module, leading to possible remote crash or exploit.</a> |
mod_ssl httpd module, leading to possible remote crash or exploit.</a> |
<li><a href=errata31.html#resolver>June 25, 2002: |
<li><a href="errata31.html#resolver">June 25, 2002: |
A potential buffer overflow in the DNS resolver has been found.</a> |
A potential buffer overflow in the DNS resolver has been found.</a> |
<li><a href=errata31.html#sshd>June 24, 2002: |
<li><a href="errata31.html#sshd">June 24, 2002: |
All versions of OpenSSH's sshd between 2.3.1 and 3.3 contain an |
All versions of OpenSSH's sshd between 2.3.1 and 3.3 contain an |
input validation error that can result in an integer overflow and |
input validation error that can result in an integer overflow and |
privilege escalation.</a> |
privilege escalation.</a> |
<li><a href=errata31.html#httpd>June 19, 2002: |
<li><a href="errata31.html#httpd">June 19, 2002: |
A buffer overflow can occur during the interpretation of chunked |
A buffer overflow can occur during the interpretation of chunked |
encoding in httpd(8), leading to possible remote crash.</a> |
encoding in httpd(8), leading to possible remote crash.</a> |
<li><a href=errata31.html#sshbsdauth>May 22, 2002: |
<li><a href="errata31.html#sshbsdauth">May 22, 2002: |
Under certain conditions, on systems using YP with netgroups |
Under certain conditions, on systems using YP with netgroups |
in the password database, it is possible that sshd(8) does |
in the password database, it is possible that sshd(8) does |
ACL checks for the requested user name but uses the password |
ACL checks for the requested user name but uses the password |
database entry of a different user for authentication. This |
database entry of a different user for authentication. This |
means that denied users might authenticate successfully |
means that denied users might authenticate successfully |
while permitted users could be locked out.</a> |
while permitted users could be locked out.</a> |
<li><a href=errata31.html#fdalloc2>May 8, 2002: |
<li><a href="errata31.html#fdalloc2">May 8, 2002: |
A race condition exists that could defeat the kernel's |
A race condition exists that could defeat the kernel's |
protection of fd slots 0-2 for setuid processes.</a> |
protection of fd slots 0-2 for setuid processes.</a> |
<li><a href=errata31.html#sudo>April 25, 2002: |
<li><a href="errata31.html#sudo">April 25, 2002: |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
<li><a href=errata31.html#sshafs>April 22, 2002: |
<li><a href="errata31.html#sshafs">April 22, 2002: |
A local user can gain super-user privileges due to a buffer |
A local user can gain super-user privileges due to a buffer |
overflow in sshd(8) if AFS has been configured on the system |
overflow in sshd(8) if AFS has been configured on the system |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
|
|
<li> |
<li> |
<a name="30"></a> |
<a name="30"></a> |
|
|
<h3><font color=#e00000>OpenBSD 3.0 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 3.0 Security Advisories</font></h3> |
These are the OpenBSD 3.0 advisories -- all these problems are solved |
These are the OpenBSD 3.0 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a> for 3.0 is no longer being maintained, |
<a href="stable.html">patch branch</a> for 3.0 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata30.html#named>November 14, 2002: |
<li><a href="errata30.html#named">November 14, 2002: |
A buffer overflow exists in named(8) that could lead to a |
A buffer overflow exists in named(8) that could lead to a |
remote crash or code execution as user named in a chroot jail.</a> |
remote crash or code execution as user named in a chroot jail.</a> |
<li><a href=errata30.html#kernresource>November 6, 2002: |
<li><a href="errata30.html#kernresource">November 6, 2002: |
Incorrect argument checking in the getitimer(2) system call |
Incorrect argument checking in the getitimer(2) system call |
may allow an attacker to crash the system.</a> |
may allow an attacker to crash the system.</a> |
<li><a href=errata30.html#smrsh>November 6, 2002: |
<li><a href="errata30.html#smrsh">November 6, 2002: |
An attacker can bypass smrsh(8)'s restrictions and execute |
An attacker can bypass smrsh(8)'s restrictions and execute |
arbitrary commands with the privileges of his own account.</a> |
arbitrary commands with the privileges of his own account.</a> |
<li><a href=errata30.html#kadmin>October 21, 2002: |
<li><a href="errata30.html#kadmin">October 21, 2002: |
A buffer overflow can occur in the kadmind(8) daemon, leading |
A buffer overflow can occur in the kadmind(8) daemon, leading |
to possible remote crash or exploit.</a> |
to possible remote crash or exploit.</a> |
<li><a href=errata30.html#kerntime>October 7, 2002: |
<li><a href="errata30.html#kerntime">October 7, 2002: |
Incorrect argument checking in the setitimer(2) system call |
Incorrect argument checking in the setitimer(2) system call |
may allow an attacker to write to kernel memory.</a> |
may allow an attacker to write to kernel memory.</a> |
<li><a href=errata30.html#scarg>August 11, 2002: |
<li><a href="errata30.html#scarg">August 11, 2002: |
An insufficient boundary check in the select and poll system calls |
An insufficient boundary check in the select and poll system calls |
allows an attacker to overwrite kernel memory and execute arbitrary code |
allows an attacker to overwrite kernel memory and execute arbitrary code |
in kernel context.</a> |
in kernel context.</a> |
<li><a href=errata30.html#ssl>July 30, 2002: |
<li><a href="errata30.html#ssl">July 30, 2002: |
Several remote buffer overflows can occur in the SSL2 server and SSL3 |
Several remote buffer overflows can occur in the SSL2 server and SSL3 |
client of the ssl(8) library, as in the ASN.1 parser code in the |
client of the ssl(8) library, as in the ASN.1 parser code in the |
crypto(3) library, all of them being potentially remotely |
crypto(3) library, all of them being potentially remotely |
exploitable.</a> |
exploitable.</a> |
<li><a href=errata30.html#xdr>July 29, 2002: |
<li><a href="errata30.html#xdr">July 29, 2002: |
A buffer overflow can occur in the xdr_array(3) RPC code, leading to |
A buffer overflow can occur in the xdr_array(3) RPC code, leading to |
possible remote crash.</a> |
possible remote crash.</a> |
<li><a href=errata30.html#pppd>July 29, 2002: |
<li><a href="errata30.html#pppd">July 29, 2002: |
A race condition exists in the pppd(8) daemon which may cause it to |
A race condition exists in the pppd(8) daemon which may cause it to |
alter the file permissions of an arbitrary file.</a> |
alter the file permissions of an arbitrary file.</a> |
<li><a href=errata30.html#isakmpd2>July 5, 2002: |
<li><a href="errata30.html#isakmpd2">July 5, 2002: |
Receiving IKE payloads out of sequence can cause isakmpd(8) to |
Receiving IKE payloads out of sequence can cause isakmpd(8) to |
crash.</a> |
crash.</a> |
<li><a href=errata30.html#ktrace>June 27, 2002: |
<li><a href="errata30.html#ktrace">June 27, 2002: |
The kernel would let any user ktrace set[ug]id processes.</a> |
The kernel would let any user ktrace set[ug]id processes.</a> |
<li><a href=errata30.html#resolver>June 25, 2002: |
<li><a href="errata30.html#resolver">June 25, 2002: |
A potential buffer overflow in the DNS resolver has been found.</a> |
A potential buffer overflow in the DNS resolver has been found.</a> |
<li><a href=errata30.html#sshdauth>June 24, 2002: |
<li><a href="errata30.html#sshdauth">June 24, 2002: |
All versions of OpenSSH's sshd between 2.3.1 and 3.3 contain an |
All versions of OpenSSH's sshd between 2.3.1 and 3.3 contain an |
input validation error that can result in an integer overflow and |
input validation error that can result in an integer overflow and |
privilege escalation.</a> |
privilege escalation.</a> |
<li><a href=errata30.html#modssl>June 24, 2002: |
<li><a href="errata30.html#modssl">June 24, 2002: |
A buffer overflow can occur in the .htaccess parsing code in |
A buffer overflow can occur in the .htaccess parsing code in |
mod_ssl httpd module, leading to possible remote crash or exploit.</a> |
mod_ssl httpd module, leading to possible remote crash or exploit.</a> |
<li><a href=errata30.html#httpd>June 19, 2002: |
<li><a href="errata30.html#httpd">June 19, 2002: |
A buffer overflow can occur during the interpretation of chunked |
A buffer overflow can occur during the interpretation of chunked |
encoding in httpd(8), leading to possible remote crash.</a> |
encoding in httpd(8), leading to possible remote crash.</a> |
<li><a href=errata30.html#fdalloc2>May 8, 2002: |
<li><a href="errata30.html#fdalloc2">May 8, 2002: |
A race condition exists that could defeat the kernel's |
A race condition exists that could defeat the kernel's |
protection of fd slots 0-2 for setuid processes.</a> |
protection of fd slots 0-2 for setuid processes.</a> |
<li><a href=errata30.html#sudo2>April 25, 2002: |
<li><a href="errata30.html#sudo2">April 25, 2002: |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
<li><a href=errata30.html#sshafs>April 22, 2002: |
<li><a href="errata30.html#sshafs">April 22, 2002: |
A local user can gain super-user privileges due to a buffer |
A local user can gain super-user privileges due to a buffer |
overflow in sshd(8) if AFS has been configured on the system |
overflow in sshd(8) if AFS has been configured on the system |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
in the sshd_config file.</a> |
in the sshd_config file.</a> |
<li><a href=errata30.html#mail>April 11, 2002: |
<li><a href="errata30.html#mail">April 11, 2002: |
The mail(1) was interpreting tilde escapes even when invoked |
The mail(1) was interpreting tilde escapes even when invoked |
in non-interactive mode. As mail(1) is called as root from cron, |
in non-interactive mode. As mail(1) is called as root from cron, |
this can lead to a local root compromise.</a> |
this can lead to a local root compromise.</a> |
<li><a href=errata30.html#approval>March 19, 2002: |
<li><a href="errata30.html#approval">March 19, 2002: |
Under certain conditions, on systems using YP with netgroups in |
Under certain conditions, on systems using YP with netgroups in |
the password database, it is possible for the rexecd(8) and rshd(8) |
the password database, it is possible for the rexecd(8) and rshd(8) |
daemons to execute a shell from a password database entry for a |
daemons to execute a shell from a password database entry for a |
different user. Similarly, atrun(8) may change to the wrong |
different user. Similarly, atrun(8) may change to the wrong |
home directory when running jobs.</a> |
home directory when running jobs.</a> |
<li><a href=errata30.html#zlib>March 13, 2002: |
<li><a href="errata30.html#zlib">March 13, 2002: |
A potential double free() exists in the zlib library; |
A potential double free() exists in the zlib library; |
this is not exploitable on OpenBSD. |
this is not exploitable on OpenBSD. |
The kernel also contains a copy of zlib; it is not |
The kernel also contains a copy of zlib; it is not |
currently known if the kernel zlib is exploitable.</a> |
currently known if the kernel zlib is exploitable.</a> |
<li><a href=errata30.html#openssh>March 8, 2002: |
<li><a href="errata30.html#openssh">March 8, 2002: |
An off-by-one check in OpenSSH's channel forwarding code |
An off-by-one check in OpenSSH's channel forwarding code |
may allow a local user to gain super-user privileges.</a> |
may allow a local user to gain super-user privileges.</a> |
<li><a href=errata30.html#ptrace>January 21, 2002: |
<li><a href="errata30.html#ptrace">January 21, 2002: |
A race condition between the ptrace(2) and execve(2) system calls |
A race condition between the ptrace(2) and execve(2) system calls |
allows an attacker to modify the memory contents of suid/sgid |
allows an attacker to modify the memory contents of suid/sgid |
processes which could lead to compromise of the super-user account.</a> |
processes which could lead to compromise of the super-user account.</a> |
<li><a href=errata30.html#sudo>January 17, 2002: |
<li><a href="errata30.html#sudo">January 17, 2002: |
There is a security hole in sudo(8) that can be exploited |
There is a security hole in sudo(8) that can be exploited |
when the Postfix sendmail replacement is installed that may |
when the Postfix sendmail replacement is installed that may |
allow an attacker on the local host to gain root privileges.</a> |
allow an attacker on the local host to gain root privileges.</a> |
<li><a href=errata30.html#lpd>November 28, 2001: |
<li><a href="errata30.html#lpd">November 28, 2001: |
An attacker can trick a machine running the lpd daemon into |
An attacker can trick a machine running the lpd daemon into |
creating new files in the root directory from a machine with |
creating new files in the root directory from a machine with |
remote line printer access.</a> |
remote line printer access.</a> |
<li><a href=errata30.html#vi.recover>November 13, 2001: |
<li><a href="errata30.html#vi.recover">November 13, 2001: |
The vi.recover script can be abused in such a way as |
The vi.recover script can be abused in such a way as |
to cause arbitrary zero-length files to be removed.</a> |
to cause arbitrary zero-length files to be removed.</a> |
<li><a href=errata30.html#pf>November 13, 2001: |
<li><a href="errata30.html#pf">November 13, 2001: |
pf(4) was incapable of dealing with certain ipv6 icmp packets, |
pf(4) was incapable of dealing with certain ipv6 icmp packets, |
resulting in a crash.</a> |
resulting in a crash.</a> |
<li><a href=errata30.html#sshd>November 12, 2001: |
<li><a href="errata30.html#sshd">November 12, 2001: |
A security hole that may allow an attacker to partially authenticate |
A security hole that may allow an attacker to partially authenticate |
if -- and only if -- the administrator has enabled KerberosV.</a> |
if -- and only if -- the administrator has enabled KerberosV.</a> |
</ul> |
</ul> |
|
|
<li> |
<li> |
<a name="29"></a> |
<a name="29"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.9 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.9 Security Advisories</font></h3> |
These are the OpenBSD 2.9 advisories -- all these problems are solved |
These are the OpenBSD 2.9 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a>. for 2.9 is no longer being maintained, |
<a href="stable.html">patch branch</a>. for 2.9 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
|
|
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata29.html#resolver>June 25, 2002: |
<li><a href="errata29.html#resolver">June 25, 2002: |
A potential buffer overflow in the DNS resolver has been found.</a> |
A potential buffer overflow in the DNS resolver has been found.</a> |
<li><a href=errata29.html#fdalloc2>May 8, 2002: |
<li><a href="errata29.html#fdalloc2">May 8, 2002: |
A race condition exists that could defeat the kernel's |
A race condition exists that could defeat the kernel's |
protection of fd slots 0-2 for setuid processes.</a> |
protection of fd slots 0-2 for setuid processes.</a> |
<li><a href=errata29.html#sudo2>April 25, 2002: |
<li><a href="errata29.html#sudo2">April 25, 2002: |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
A bug in sudo may allow an attacker to corrupt the heap.</a> |
<li><a href=errata29.html#sshafs>April 22, 2002: |
<li><a href="errata29.html#sshafs">April 22, 2002: |
A local user can gain super-user privileges due to a buffer |
A local user can gain super-user privileges due to a buffer |
overflow in sshd(8) if AFS has been configured on the system |
overflow in sshd(8) if AFS has been configured on the system |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
or if KerberosTgtPassing or AFSTokenPassing has been enabled |
in the sshd_config file.</a> |
in the sshd_config file.</a> |
<li><a href=errata29.html#mail>April 11, 2002: |
<li><a href="errata29.html#mail">April 11, 2002: |
The mail(1) was interpreting tilde escapes even when invoked |
The mail(1) was interpreting tilde escapes even when invoked |
in non-interactive mode. As mail(1) is called as root from cron, |
in non-interactive mode. As mail(1) is called as root from cron, |
this can lead to a local root compromise.</a> |
this can lead to a local root compromise.</a> |
<li><a href=errata29.html#zlib>March 13, 2002: |
<li><a href="errata29.html#zlib">March 13, 2002: |
A potential double free() exists in the zlib library; |
A potential double free() exists in the zlib library; |
this is not exploitable on OpenBSD. |
this is not exploitable on OpenBSD. |
The kernel also contains a copy of zlib; it is not |
The kernel also contains a copy of zlib; it is not |
currently known if the kernel zlib is exploitable.</a> |
currently known if the kernel zlib is exploitable.</a> |
<li><a href=errata29.html#openssh>March 8, 2002: |
<li><a href="errata29.html#openssh">March 8, 2002: |
An off-by-one check in OpenSSH's channel forwarding code |
An off-by-one check in OpenSSH's channel forwarding code |
may allow a local user to gain super-user privileges.</a> |
may allow a local user to gain super-user privileges.</a> |
<li><a href=errata29.html#ptrace>January 21, 2002: |
<li><a href="errata29.html#ptrace">January 21, 2002: |
A race condition between the ptrace(2) and execve(2) system calls |
A race condition between the ptrace(2) and execve(2) system calls |
allows an attacker to modify the memory contents of suid/sgid |
allows an attacker to modify the memory contents of suid/sgid |
processes which could lead to compromise of the super-user account.</a> |
processes which could lead to compromise of the super-user account.</a> |
<li><a href=errata29.html#sudo>January 17, 2002: |
<li><a href="errata29.html#sudo">January 17, 2002: |
There is a security hole in sudo(8) that can be exploited |
There is a security hole in sudo(8) that can be exploited |
when the Postfix sendmail replacement is installed that may |
when the Postfix sendmail replacement is installed that may |
allow an attacker on the local host to gain root privileges.</a> |
allow an attacker on the local host to gain root privileges.</a> |
<li><a href=errata29.html#lpd2>November 28, 2001: |
<li><a href="errata29.html#lpd2">November 28, 2001: |
An attacker can trick a machine running the lpd daemon into |
An attacker can trick a machine running the lpd daemon into |
creating new files in the root directory from a machine with |
creating new files in the root directory from a machine with |
remote line printer access.</a> |
remote line printer access.</a> |
<li><a href=errata29.html#vi.recover>November 13, 2001: |
<li><a href="errata29.html#vi.recover">November 13, 2001: |
The vi.recover script can be abused in such a way as |
The vi.recover script can be abused in such a way as |
to cause arbitrary zero-length files to be removed.</a> |
to cause arbitrary zero-length files to be removed.</a> |
<li><a href=errata29.html#uucp>September 11, 2001: |
<li><a href="errata29.html#uucp">September 11, 2001: |
A security hole exists in uuxqt(8) that may allow an |
A security hole exists in uuxqt(8) that may allow an |
attacker to gain root privileges.</a> |
attacker to gain root privileges.</a> |
<li><a href=errata29.html#lpd>August 29, 2001: |
<li><a href="errata29.html#lpd">August 29, 2001: |
A security hole exists in lpd(8) that may allow an |
A security hole exists in lpd(8) that may allow an |
attacker to gain root privileges if lpd is running.</a> |
attacker to gain root privileges if lpd is running.</a> |
<li><a href=errata29.html#sendmail2>August 21, 2001: |
<li><a href="errata29.html#sendmail2">August 21, 2001: |
A security hole exists in sendmail(8) that may allow an |
A security hole exists in sendmail(8) that may allow an |
attacker on the local host to gain root privileges.</a> |
attacker on the local host to gain root privileges.</a> |
<li><a href=errata29.html#nfs>July 30, 2001: |
<li><a href="errata29.html#nfs">July 30, 2001: |
A kernel buffer overflow in the NFS code can be used to execute |
A kernel buffer overflow in the NFS code can be used to execute |
arbitrary code by users with mount privileges (only root by |
arbitrary code by users with mount privileges (only root by |
default).</a> |
default).</a> |
<li><a href=errata29.html#kernexec>June 15, 2001: |
<li><a href="errata29.html#kernexec">June 15, 2001: |
A race condition in the kernel can lead to local root compromise.</a> |
A race condition in the kernel can lead to local root compromise.</a> |
<li><a href=errata29.html#sshcookie>June 12, 2001: |
<li><a href="errata29.html#sshcookie">June 12, 2001: |
sshd(8) allows users to delete arbitrary files named "cookies" |
sshd(8) allows users to delete arbitrary files named "cookies" |
if X11 forwarding is enabled. X11 forwarding is disabled |
if X11 forwarding is enabled. X11 forwarding is disabled |
by default.</a> |
by default.</a> |
<li><a href=errata29.html#fts>May 30, 2001: |
<li><a href="errata29.html#fts">May 30, 2001: |
Programs using the fts routines can be tricked into changing |
Programs using the fts routines can be tricked into changing |
into the wrong directory.</a> |
into the wrong directory.</a> |
<li><a href=errata29.html#sendmail>May 29, 2001: |
<li><a href="errata29.html#sendmail">May 29, 2001: |
Sendmail signal handlers contain unsafe code, |
Sendmail signal handlers contain unsafe code, |
leading to numerous race conditions.</a> |
leading to numerous race conditions.</a> |
</ul> |
</ul> |
|
|
<li> |
<li> |
<a name="28"></a> |
<a name="28"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.8 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.8 Security Advisories</font></h3> |
These are the OpenBSD 2.8 advisories -- all these problems are solved |
These are the OpenBSD 2.8 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. The |
in <a href="anoncvs.html">OpenBSD current</a>. The |
<a href=stable.html>patch branch</a>. for 2.8 is no longer being maintained, |
<a href="stable.html">patch branch</a>. for 2.8 is no longer being maintained, |
you should update your machine. |
you should update your machine. |
|
|
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata28.html#uucp>September 11, 2001: |
<li><a href="errata28.html#uucp">September 11, 2001: |
A security hole exists in uuxqt(8) that may allow an |
A security hole exists in uuxqt(8) that may allow an |
attacker to gain root privileges.</a> |
attacker to gain root privileges.</a> |
<li><a href=errata28.html#lpd>August 29, 2001: |
<li><a href="errata28.html#lpd">August 29, 2001: |
A security hole exists in lpd(8) that may allow an |
A security hole exists in lpd(8) that may allow an |
attacker to gain root privileges if lpd is running.</a> |
attacker to gain root privileges if lpd is running.</a> |
<li><a href=errata28.html#sendmail2>August 21, 2001: |
<li><a href="errata28.html#sendmail2">August 21, 2001: |
A security hole exists in sendmail(8) that may allow an |
A security hole exists in sendmail(8) that may allow an |
attacker on the local host to gain root privileges.</a> |
attacker on the local host to gain root privileges.</a> |
<li><a href=errata28.html#kernexec>June 15, 2001: |
<li><a href="errata28.html#kernexec">June 15, 2001: |
A race condition in the kernel can lead to local root compromise.</a> |
A race condition in the kernel can lead to local root compromise.</a> |
<li><a href=errata28.html#fts>May 30, 2001: |
<li><a href="errata28.html#fts">May 30, 2001: |
Programs using the fts routines can be tricked into changing |
Programs using the fts routines can be tricked into changing |
into the wrong directory.</a> |
into the wrong directory.</a> |
<li><a href=errata28.html#sendmail>May 29, 2001: |
<li><a href="errata28.html#sendmail">May 29, 2001: |
Sendmail signal handlers contain unsafe code, |
Sendmail signal handlers contain unsafe code, |
leading to numerous race conditions.</a> |
leading to numerous race conditions.</a> |
<li><a href=errata28.html#ipf_frag>Apr 23, 2001: |
<li><a href="errata28.html#ipf_frag">Apr 23, 2001: |
IPF contains a serious bug with its handling of fragment caching.</a> |
IPF contains a serious bug with its handling of fragment caching.</a> |
<li><a href=errata28.html#glob_limit>Apr 23, 2001: |
<li><a href="errata28.html#glob_limit">Apr 23, 2001: |
ftpd(8) contains a potential DoS relating to glob(3).</a> |
ftpd(8) contains a potential DoS relating to glob(3).</a> |
<li><a href=errata28.html#glob>Apr 10, 2001: |
<li><a href="errata28.html#glob">Apr 10, 2001: |
The glob(3) library call contains multiple buffer overflows.</a> |
The glob(3) library call contains multiple buffer overflows.</a> |
<li><a href=errata28.html#readline>Mar 18, 2001: |
<li><a href="errata28.html#readline">Mar 18, 2001: |
The readline library creates history files with permissive modes based on the user's umask.</a> |
The readline library creates history files with permissive modes based on the user's umask.</a> |
<li><a href=errata28.html#ipsec_ah>Mar 2, 2001: |
<li><a href="errata28.html#ipsec_ah">Mar 2, 2001: |
Insufficient checks in the IPSEC AH IPv4 option handling code can lead to a buffer overrun in the kernel.</a> |
Insufficient checks in the IPSEC AH IPv4 option handling code can lead to a buffer overrun in the kernel.</a> |
<li><a href=errata28.html#userldt>Mar 2, 2001: |
<li><a href="errata28.html#userldt">Mar 2, 2001: |
The <b>USER_LDT</b> kernel option allows an attacker to gain access to privileged areas of kernel memory.</a> |
The <b>USER_LDT</b> kernel option allows an attacker to gain access to privileged areas of kernel memory.</a> |
<li><a href=errata28.html#sudo>Feb 22, 2001: |
<li><a href="errata28.html#sudo">Feb 22, 2001: |
a non-exploitable buffer overflow was fixed in sudo(8).</a> |
a non-exploitable buffer overflow was fixed in sudo(8).</a> |
<li><a href=errata28.html#named>Jan 29, 2001: |
<li><a href="errata28.html#named">Jan 29, 2001: |
merge named(8) with ISC BIND 4.9.8-REL, which fixes some buffer vulnerabilities.</a> |
merge named(8) with ISC BIND 4.9.8-REL, which fixes some buffer vulnerabilities.</a> |
<li><a href=errata28.html#rnd>Jan 22, 2001: |
<li><a href="errata28.html#rnd">Jan 22, 2001: |
rnd(4) did not use all of its input when written to.</a> |
rnd(4) did not use all of its input when written to.</a> |
<li><a href=errata28.html#xlock>Dec 22, 2000: |
<li><a href="errata28.html#xlock">Dec 22, 2000: |
xlock(1)'s authentication was re-done to authenticate via a named pipe. (patch and new xlock binaries included).</a> |
xlock(1)'s authentication was re-done to authenticate via a named pipe. (patch and new xlock binaries included).</a> |
<li><a href=errata28.html#procfs>Dec 18, 2000: |
<li><a href="errata28.html#procfs">Dec 18, 2000: |
Procfs contains numerous overflows. Procfs is not used by default in OpenBSD. (patch included).</a> |
Procfs contains numerous overflows. Procfs is not used by default in OpenBSD. (patch included).</a> |
<li><a href=errata28.html#kerberos2>Dec 10, 2000: |
<li><a href="errata28.html#kerberos2">Dec 10, 2000: |
Another problem exists in KerberosIV libraries (patch included).</a> |
Another problem exists in KerberosIV libraries (patch included).</a> |
<li><a href=errata28.html#kerberos>Dec 7, 2000: |
<li><a href="errata28.html#kerberos">Dec 7, 2000: |
A set of problems in KerberosIV exist (patch included).</a> |
A set of problems in KerberosIV exist (patch included).</a> |
<li><a href=errata28.html#ftpd>Dec 4, 2000: |
<li><a href="errata28.html#ftpd">Dec 4, 2000: |
A single-byte buffer overflow exists in ftpd (patch included).</a> |
A single-byte buffer overflow exists in ftpd (patch included).</a> |
</ul> |
</ul> |
|
|
|
|
<li> |
<li> |
<a name="27"></a> |
<a name="27"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.7 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.7 Security Advisories</font></h3> |
These are the OpenBSD 2.7 advisories -- all these problems are solved |
These are the OpenBSD 2.7 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. Obviously, all the |
in <a href="anoncvs.html">OpenBSD current</a>. Obviously, all the |
OpenBSD 2.6 advisories listed below are fixed in OpenBSD 2.7. |
OpenBSD 2.6 advisories listed below are fixed in OpenBSD 2.7. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata27.html#readline>Mar 18, 2001: |
<li><a href="errata27.html#readline">Mar 18, 2001: |
The readline library creates history files with permissive modes based on the user's umask.</a> |
The readline library creates history files with permissive modes based on the user's umask.</a> |
<li><a href=errata27.html#sudo>Feb 22, 2001: |
<li><a href="errata27.html#sudo">Feb 22, 2001: |
a buffer overflow was fixed in sudo(8).</a> |
a buffer overflow was fixed in sudo(8).</a> |
<li><a href=errata27.html#ftpd>Dec 4, 2000: |
<li><a href="errata27.html#ftpd">Dec 4, 2000: |
A single-byte buffer overflow exists in ftpd (patch included).</a> |
A single-byte buffer overflow exists in ftpd (patch included).</a> |
<li><a href=errata27.html#sshforwarding>Nov 10, 2000: |
<li><a href="errata27.html#sshforwarding">Nov 10, 2000: |
Hostile servers can force OpenSSH clients to do agent or X11 forwarding. |
Hostile servers can force OpenSSH clients to do agent or X11 forwarding. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#xtrans>Oct 26, 2000: |
<li><a href="errata27.html#xtrans">Oct 26, 2000: |
X11 libraries have 2 potential overflows in xtrans code. |
X11 libraries have 2 potential overflows in xtrans code. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#httpd>Oct 18, 2000: |
<li><a href="errata27.html#httpd">Oct 18, 2000: |
Apache mod_rewrite and mod_vhost_alias modules could expose files |
Apache mod_rewrite and mod_vhost_alias modules could expose files |
on the server in certain configurations if used. |
on the server in certain configurations if used. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#telnetd>Oct 10, 2000: |
<li><a href="errata27.html#telnetd">Oct 10, 2000: |
The telnet daemon does not strip out the TERMINFO, TERMINFO_DIRS, |
The telnet daemon does not strip out the TERMINFO, TERMINFO_DIRS, |
TERMPATH and TERMCAP environment variables as it should. |
TERMPATH and TERMCAP environment variables as it should. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#format_strings>Oct 6, 2000: |
<li><a href="errata27.html#format_strings">Oct 6, 2000: |
There are printf-style format string bugs in several privileged |
There are printf-style format string bugs in several privileged |
programs. (patch included)</a> |
programs. (patch included)</a> |
<li><a href=errata27.html#curses>Oct 6, 2000: |
<li><a href="errata27.html#curses">Oct 6, 2000: |
libcurses honored terminal descriptions in the $HOME/.terminfo |
libcurses honored terminal descriptions in the $HOME/.terminfo |
directory as well as in the TERMCAP environment variable for |
directory as well as in the TERMCAP environment variable for |
setuid and setgid applications. |
setuid and setgid applications. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#talkd>Oct 6, 2000: |
<li><a href="errata27.html#talkd">Oct 6, 2000: |
A format string vulnerability exists in talkd(8). |
A format string vulnerability exists in talkd(8). |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#pw_error>Oct 3, 2000: |
<li><a href="errata27.html#pw_error">Oct 3, 2000: |
A format string vulnerability exists in the pw_error() function of the |
A format string vulnerability exists in the pw_error() function of the |
libutil library, yielding localhost root through chpass(1). |
libutil library, yielding localhost root through chpass(1). |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#ipsec>Sep 18, 2000: |
<li><a href="errata27.html#ipsec">Sep 18, 2000: |
Bad ESP/AH packets could cause a crash under certain conditions. |
Bad ESP/AH packets could cause a crash under certain conditions. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#xlock>Aug 16, 2000: |
<li><a href="errata27.html#xlock">Aug 16, 2000: |
A format string vulnerability (localhost root) exists in xlock(1). |
A format string vulnerability (localhost root) exists in xlock(1). |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#X11_libs>July 14, 2000: |
<li><a href="errata27.html#X11_libs">July 14, 2000: |
Various bugs found in X11 libraries have various side effects, almost |
Various bugs found in X11 libraries have various side effects, almost |
completely denial of service in OpenBSD. |
completely denial of service in OpenBSD. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#ftpd>July 5, 2000: |
<li><a href="errata27.html#ftpd">July 5, 2000: |
Just like pretty much all the other unix ftp daemons |
Just like pretty much all the other unix ftp daemons |
on the planet, ftpd had a remote root hole in it. |
on the planet, ftpd had a remote root hole in it. |
Luckily, ftpd was not enabled by default. |
Luckily, ftpd was not enabled by default. |
The problem exists if anonymous ftp is enabled. |
The problem exists if anonymous ftp is enabled. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#mopd>July 5, 2000: |
<li><a href="errata27.html#mopd">July 5, 2000: |
Mopd, very rarely used, contained some buffer overflows. |
Mopd, very rarely used, contained some buffer overflows. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#libedit>June 28, 2000: |
<li><a href="errata27.html#libedit">June 28, 2000: |
libedit would check for a <b>.editrc</b> file in the current |
libedit would check for a <b>.editrc</b> file in the current |
directory. Not known to be a real security issue, but a patch |
directory. Not known to be a real security issue, but a patch |
is available anyways. |
is available anyways. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#dhclient>June 24, 2000: |
<li><a href="errata27.html#dhclient">June 24, 2000: |
A serious bug in dhclient(8) could allow strings from a |
A serious bug in dhclient(8) could allow strings from a |
malicious dhcp server to be executed in the shell as root. |
malicious dhcp server to be executed in the shell as root. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#isakmpd>June 9, 2000: |
<li><a href="errata27.html#isakmpd">June 9, 2000: |
A serious bug in isakmpd(8) policy handling wherein |
A serious bug in isakmpd(8) policy handling wherein |
policy verification could be completely bypassed in isakmpd. |
policy verification could be completely bypassed in isakmpd. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#uselogin>June 6, 2000: |
<li><a href="errata27.html#uselogin">June 6, 2000: |
The non-default flag UseLogin in <b>/etc/sshd_config</b> is broken, |
The non-default flag UseLogin in <b>/etc/sshd_config</b> is broken, |
should not be used, and results in security problems on |
should not be used, and results in security problems on |
other operating systems.</a> |
other operating systems.</a> |
<li><a href=errata27.html#bridge>May 26, 2000: |
<li><a href="errata27.html#bridge">May 26, 2000: |
The bridge(4) <i>learning</i> flag may be bypassed. |
The bridge(4) <i>learning</i> flag may be bypassed. |
(patch included)</a> |
(patch included)</a> |
<li><a href=errata27.html#ipf>May 25, 2000: |
<li><a href="errata27.html#ipf">May 25, 2000: |
Improper use of ipf <i>keep-state</i> rules can result |
Improper use of ipf <i>keep-state</i> rules can result |
in firewall rules being bypassed. (patch included)</a> |
in firewall rules being bypassed. (patch included)</a> |
|
|
|
|
<li> |
<li> |
<a name="26"></a> |
<a name="26"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.6 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.6 Security Advisories</font></h3> |
These are the OpenBSD 2.6 advisories -- all these problems are solved |
These are the OpenBSD 2.6 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. Obviously, all the |
in <a href="anoncvs.html">OpenBSD current</a>. Obviously, all the |
OpenBSD 2.5 advisories listed below are fixed in OpenBSD 2.6. |
OpenBSD 2.5 advisories listed below are fixed in OpenBSD 2.6. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata26.html#semconfig>May 26, 2000: |
<li><a href="errata26.html#semconfig">May 26, 2000: |
SYSV semaphore support contained an undocumented system call |
SYSV semaphore support contained an undocumented system call |
which could wedge semaphore-using processes from exiting. (patch included)</a> |
which could wedge semaphore-using processes from exiting. (patch included)</a> |
<li><a href=errata26.html#ipf>May 25, 2000: |
<li><a href="errata26.html#ipf">May 25, 2000: |
Improper use of ipf <i>keep-state</i> rules can result |
Improper use of ipf <i>keep-state</i> rules can result |
in firewall rules being bypassed. (patch included)</a> |
in firewall rules being bypassed. (patch included)</a> |
<li><a href=errata26.html#xlockmore>May 25, 2000: |
<li><a href="errata26.html#xlockmore">May 25, 2000: |
xlockmore has a bug which a localhost attacker can use to gain |
xlockmore has a bug which a localhost attacker can use to gain |
access to the encrypted root password hash (which is normally |
access to the encrypted root password hash (which is normally |
encoded using blowfish</a> (see |
encoded using blowfish</a> (see |
<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=crypt&sektion=3"> |
<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=crypt&sektion=3"> |
crypt(3)</a>) |
crypt(3)</a>) |
(patch included). |
(patch included). |
<li><a href=errata26.html#procfs>Jan 20, 2000: |
<li><a href="errata26.html#procfs">Jan 20, 2000: |
Systems running with procfs enabled and mounted are |
Systems running with procfs enabled and mounted are |
vulnerable to a very tricky exploit. procfs is not |
vulnerable to a very tricky exploit. procfs is not |
mounted by default. |
mounted by default. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata26.html#sendmail>Dec 4, 1999: |
<li><a href="errata26.html#sendmail">Dec 4, 1999: |
Sendmail permitted any user to cause a aliases file wrap, |
Sendmail permitted any user to cause a aliases file wrap, |
thus exposing the system to a race where the aliases file |
thus exposing the system to a race where the aliases file |
did not exist. |
did not exist. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata26.html#poll>Dec 4, 1999: |
<li><a href="errata26.html#poll">Dec 4, 1999: |
Various bugs in poll(2) may cause a kernel crash.</a> |
Various bugs in poll(2) may cause a kernel crash.</a> |
<li><a href=errata26.html#sslUSA>Dec 2, 1999: |
<li><a href="errata26.html#sslUSA">Dec 2, 1999: |
A buffer overflow in the RSAREF code included in the |
A buffer overflow in the RSAREF code included in the |
USA version of libssl, is possibly exploitable in |
USA version of libssl, is possibly exploitable in |
httpd, ssh, or isakmpd, if SSL/RSA features are enabled. |
httpd, ssh, or isakmpd, if SSL/RSA features are enabled. |
(patch included).<br></a> |
(patch included).<br></a> |
<strong>Update:</strong> Turns out that this was not exploitable |
<strong>Update:</strong> Turns out that this was not exploitable |
in any of the software included in OpenBSD 2.6. |
in any of the software included in OpenBSD 2.6. |
<li><a href=errata26.html#ifmedia>Nov 9, 1999: |
<li><a href="errata26.html#ifmedia">Nov 9, 1999: |
Any user could change interface media configurations, resulting in |
Any user could change interface media configurations, resulting in |
a localhost denial of service attack. |
a localhost denial of service attack. |
(patch included).</a> |
(patch included).</a> |
|
|
<li> |
<li> |
<a name="25"></a> |
<a name="25"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.5 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.5 Security Advisories</font></h3> |
These are the OpenBSD 2.5 advisories -- all these problems are solved |
These are the OpenBSD 2.5 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. Obviously, all the |
in <a href="anoncvs.html">OpenBSD current</a>. Obviously, all the |
OpenBSD 2.4 advisories listed below are fixed in OpenBSD 2.5. |
OpenBSD 2.4 advisories listed below are fixed in OpenBSD 2.5. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata25.html#cron>Aug 30, 1999: |
<li><a href="errata25.html#cron">Aug 30, 1999: |
In cron(8), make sure argv[] is NULL terminated in the |
In cron(8), make sure argv[] is NULL terminated in the |
fake popen() and run sendmail as the user, not as root. |
fake popen() and run sendmail as the user, not as root. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata25.html#miscfs>Aug 12, 1999: The procfs and fdescfs |
<li><a href="errata25.html#miscfs">Aug 12, 1999: The procfs and fdescfs |
filesystems had an overrun in their handling of uio_offset |
filesystems had an overrun in their handling of uio_offset |
in their readdir() routines. (These filesystems are not |
in their readdir() routines. (These filesystems are not |
enabled by default). (patch included).</a> |
enabled by default). (patch included).</a> |
<li><a href=errata25.html#profil>Aug 9, 1999: Stop profiling (see profil(2)) |
<li><a href="errata25.html#profil">Aug 9, 1999: Stop profiling (see profil(2)) |
when we execve() a new process. (patch included).</a> |
when we execve() a new process. (patch included).</a> |
<li><a href=errata25.html#ipsec_in_use>Aug 6, 1999: Packets that should have |
<li><a href="errata25.html#ipsec_in_use">Aug 6, 1999: Packets that should have |
been handled by IPsec may be transmitted as cleartext. |
been handled by IPsec may be transmitted as cleartext. |
PF_KEY SA expirations may leak kernel resources. |
PF_KEY SA expirations may leak kernel resources. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata25.html#rc>Aug 5, 1999: In /etc/rc, use mktemp(1) for |
<li><a href="errata25.html#rc">Aug 5, 1999: In /etc/rc, use mktemp(1) for |
motd re-writing and change the find(1) to use -execdir |
motd re-writing and change the find(1) to use -execdir |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata25.html#chflags>Jul 30, 1999: Do not permit regular |
<li><a href="errata25.html#chflags">Jul 30, 1999: Do not permit regular |
users to chflags(2) or fchflags(2) on character or block devices |
users to chflags(2) or fchflags(2) on character or block devices |
which they may currently be the owner of (patch included).</a> |
which they may currently be the owner of (patch included).</a> |
<li><a href=errata25.html#nroff>Jul 27, 1999: Cause groff(1) to be invoked |
<li><a href="errata25.html#nroff">Jul 27, 1999: Cause groff(1) to be invoked |
with the -S flag, when called by nroff(1) (patch included).</a> |
with the -S flag, when called by nroff(1) (patch included).</a> |
</ul> |
</ul> |
|
|
|
|
<li> |
<li> |
<a name="24"></a> |
<a name="24"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.4 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.4 Security Advisories</font></h3> |
These are the OpenBSD 2.4 advisories -- all these problems are solved |
These are the OpenBSD 2.4 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. Obviously, all the |
in <a href="anoncvs.html">OpenBSD current</a>. Obviously, all the |
OpenBSD 2.3 advisories listed below are fixed in OpenBSD 2.4. |
OpenBSD 2.3 advisories listed below are fixed in OpenBSD 2.4. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata24.html#poll>Mar 22, 1999: The nfds argument for poll(2) needs |
<li><a href="errata24.html#poll">Mar 22, 1999: The nfds argument for poll(2) needs |
to be constrained, to avoid kvm starvation (patch included).</a> |
to be constrained, to avoid kvm starvation (patch included).</a> |
<li><a href=errata24.html#tss>Mar 21, 1999: A change in TSS handling stops |
<li><a href="errata24.html#tss">Mar 21, 1999: A change in TSS handling stops |
another kernel crash case caused by the <strong>crashme</strong> |
another kernel crash case caused by the <strong>crashme</strong> |
program (patch included).</a> |
program (patch included).</a> |
<li><a href=errata24.html#nlink>Feb 25, 1999: An unbounded increment on the |
<li><a href="errata24.html#nlink">Feb 25, 1999: An unbounded increment on the |
nlink value in FFS and EXT2FS filesystems can cause a system crash. |
nlink value in FFS and EXT2FS filesystems can cause a system crash. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#ping>Feb 23, 1999: Yet another buffer overflow |
<li><a href="errata24.html#ping">Feb 23, 1999: Yet another buffer overflow |
existed in ping(8). (patch included).</a> |
existed in ping(8). (patch included).</a> |
<li><a href=errata24.html#ipqrace>Feb 19, 1999: ipintr() had a race in use of |
<li><a href="errata24.html#ipqrace">Feb 19, 1999: ipintr() had a race in use of |
the ipq, which could permit an attacker to cause a crash. |
the ipq, which could permit an attacker to cause a crash. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#accept>Feb 17, 1999: A race condition in the |
<li><a href="errata24.html#accept">Feb 17, 1999: A race condition in the |
kernel between accept(2) and select(2) could permit an attacker |
kernel between accept(2) and select(2) could permit an attacker |
to hang sockets from remote. |
to hang sockets from remote. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#maxqueue>Feb 17, 1999: IP fragment assembly can |
<li><a href="errata24.html#maxqueue">Feb 17, 1999: IP fragment assembly can |
bog the machine excessively and cause problems. |
bog the machine excessively and cause problems. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#trctrap>Feb 12, 1999: i386 T_TRCTRAP handling and |
<li><a href="errata24.html#trctrap">Feb 12, 1999: i386 T_TRCTRAP handling and |
DDB interacted to possibly cause a crash. |
DDB interacted to possibly cause a crash. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#rst>Feb 11, 1999: TCP/IP RST handling was sloppy. |
<li><a href="errata24.html#rst">Feb 11, 1999: TCP/IP RST handling was sloppy. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata24.html#bootpd>Nov 27, 1998: There is a remotely exploitable |
<li><a href="errata24.html#bootpd">Nov 27, 1998: There is a remotely exploitable |
problem in bootpd(8). (patch included).</a> |
problem in bootpd(8). (patch included).</a> |
<li><a href=errata24.html#termcap>Nov 19, 1998: There is a possibly locally |
<li><a href="errata24.html#termcap">Nov 19, 1998: There is a possibly locally |
exploitable problem relating to environment variables in termcap |
exploitable problem relating to environment variables in termcap |
and curses. (patch included).</a> |
and curses. (patch included).</a> |
<li><a href=errata24.html#tcpfix>Nov 13, 1998: There is a remote machine lockup |
<li><a href="errata24.html#tcpfix">Nov 13, 1998: There is a remote machine lockup |
bug in the TCP decoding kernel. (patch included).</a> |
bug in the TCP decoding kernel. (patch included).</a> |
</ul> |
</ul> |
|
|
|
|
<li> |
<li> |
<a name="23"></a> |
<a name="23"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.3 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.3 Security Advisories</font></h3> |
These are the OpenBSD 2.3 advisories -- all these problems are solved |
These are the OpenBSD 2.3 advisories -- all these problems are solved |
in <a href=anoncvs.html>OpenBSD current</a>. Obviously, all the |
in <a href="anoncvs.html">OpenBSD current</a>. Obviously, all the |
OpenBSD 2.2 advisories listed below are fixed in OpenBSD 2.3. |
OpenBSD 2.2 advisories listed below are fixed in OpenBSD 2.3. |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata23.html#bootpd>Nov 27, 1998: There is a remotely exploitable |
<li><a href="errata23.html#bootpd">Nov 27, 1998: There is a remotely exploitable |
problem in bootpd(8). (patch included).</a> |
problem in bootpd(8). (patch included).</a> |
<li><a href=errata23.html#tcpfix>Nov 13, 1998: There is a remote machine lockup |
<li><a href="errata23.html#tcpfix">Nov 13, 1998: There is a remote machine lockup |
bug in the TCP decoding kernel. (patch included).</a> |
bug in the TCP decoding kernel. (patch included).</a> |
<li><a href=errata23.html#resolver>August 31, 1998: A benign looking resolver |
<li><a href="errata23.html#resolver">August 31, 1998: A benign looking resolver |
buffer overflow bug was re-introduced accidentally (patches included).</a> |
buffer overflow bug was re-introduced accidentally (patches included).</a> |
<li><a href=errata23.html#chpass>Aug 2, 1998: |
<li><a href="errata23.html#chpass">Aug 2, 1998: |
chpass(1) has a file descriptor leak which allows an |
chpass(1) has a file descriptor leak which allows an |
attacker to modify /etc/master.passwd.</a> |
attacker to modify /etc/master.passwd.</a> |
<li><a href=errata23.html#inetd>July 15, 1998: Inetd had a file descriptor leak.</a> |
<li><a href="errata23.html#inetd">July 15, 1998: Inetd had a file descriptor leak.</a> |
<li><a href=errata23.html#fdalloc>Jul 2, 1998: setuid and setgid processes |
<li><a href="errata23.html#fdalloc">Jul 2, 1998: setuid and setgid processes |
should not be executed with fd slots 0, 1, or 2 free. |
should not be executed with fd slots 0, 1, or 2 free. |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata23.html#xlib>June 6, 1998: Further problems with the X |
<li><a href="errata23.html#xlib">June 6, 1998: Further problems with the X |
libraries (patches included).</a> |
libraries (patches included).</a> |
<li><a href=errata23.html#kill>May 17, 1998: kill(2) of setuid/setgid target |
<li><a href="errata23.html#kill">May 17, 1998: kill(2) of setuid/setgid target |
processes too permissive (4th revision patch included).</a> |
processes too permissive (4th revision patch included).</a> |
<li><a href=errata23.html#immutable>May 11, 1998: mmap() permits partial bypassing |
<li><a href="errata23.html#immutable">May 11, 1998: mmap() permits partial bypassing |
of immutable and append-only file flags. (patch included).</a> |
of immutable and append-only file flags. (patch included).</a> |
<li><a href=errata23.html#ipsec>May 5, 1998: Incorrect handling of IPSEC packets |
<li><a href="errata23.html#ipsec">May 5, 1998: Incorrect handling of IPSEC packets |
if IPSEC is enabled (patch included).</a> |
if IPSEC is enabled (patch included).</a> |
<li><a href=errata23.html#xterm-xaw>May 1, 1998: Buffer overflow in xterm and Xaw |
<li><a href="errata23.html#xterm-xaw">May 1, 1998: Buffer overflow in xterm and Xaw |
(CERT advisory VB-98.04) (patch included).</a> |
(CERT advisory VB-98.04) (patch included).</a> |
</ul> |
</ul> |
|
|
|
|
<li> |
<li> |
<a name="22"></a> |
<a name="22"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.2 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.2 Security Advisories</font></h3> |
These are the OpenBSD 2.2 advisories. All these problems are solved |
These are the OpenBSD 2.2 advisories. All these problems are solved |
in <a href=23.html>OpenBSD 2.3</a>. Some of these problems |
in <a href="23.html">OpenBSD 2.3</a>. Some of these problems |
still exist in other operating systems. (The supplied patches are for |
still exist in other operating systems. (The supplied patches are for |
OpenBSD 2.2; they may or may not work on OpenBSD 2.1). |
OpenBSD 2.2; they may or may not work on OpenBSD 2.1). |
|
|
<p> |
<p> |
<ul> |
<ul> |
<li><a href=errata22.html#ipsec>May 5, 1998: Incorrect handling of IPSEC |
<li><a href="errata22.html#ipsec">May 5, 1998: Incorrect handling of IPSEC |
packets if IPSEC is enabled (patch included).</a> |
packets if IPSEC is enabled (patch included).</a> |
<li><a href=errata22.html#xterm-xaw>May 1, 1998: Buffer overflow in xterm |
<li><a href="errata22.html#xterm-xaw">May 1, 1998: Buffer overflow in xterm |
and Xaw (CERT advisory VB-98.04) (patch included).</a> |
and Xaw (CERT advisory VB-98.04) (patch included).</a> |
<li><a href=errata22.html#uucpd>Apr 22, 1998: Buffer overflow in uucpd |
<li><a href="errata22.html#uucpd">Apr 22, 1998: Buffer overflow in uucpd |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata22.html#rmjob>Apr 22, 1998: Buffer mismanagement in lprm |
<li><a href="errata22.html#rmjob">Apr 22, 1998: Buffer mismanagement in lprm |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata22.html#ping>Mar 31, 1998: Overflow in ping -R (patch included).</a> |
<li><a href="errata22.html#ping">Mar 31, 1998: Overflow in ping -R (patch included).</a> |
<li><a href=errata22.html#named>Mar 30, 1998: Overflow in named fake-iquery |
<li><a href="errata22.html#named">Mar 30, 1998: Overflow in named fake-iquery |
(patch included).</a> |
(patch included).</a> |
<li><a href=errata22.html#mountd>Mar 2, 1998: Accidental NFS filesystem |
<li><a href="errata22.html#mountd">Mar 2, 1998: Accidental NFS filesystem |
export (patch included).</a> |
export (patch included).</a> |
<li><a href="advisories/mmap.txt">Feb 26, 1998: Read-write mmap() flaw.</a> |
<li><a href="advisories/mmap.txt">Feb 26, 1998: Read-write mmap() flaw.</a> |
Revision 3 of the patch is available <a href=errata22.html#mmap>here</a> |
Revision 3 of the patch is available <a href="errata22.html#mmap">here</a> |
<li><a href="advisories/sourceroute.txt">Feb 19, 1998: Sourcerouted Packet |
<li><a href="advisories/sourceroute.txt">Feb 19, 1998: Sourcerouted Packet |
Acceptance.</a> |
Acceptance.</a> |
A patch is available <a href=errata22.html#sourceroute>here</a>. |
A patch is available <a href="errata22.html#sourceroute">here</a>. |
<li><a href=errata22.html#ruserok>Feb 13, 1998: Setuid coredump & Ruserok() |
<li><a href="errata22.html#ruserok">Feb 13, 1998: Setuid coredump & Ruserok() |
flaw (patch included).</a> |
flaw (patch included).</a> |
<li><a href=errata22.html#ldso>Feb 9, 1998: MIPS ld.so flaw (patch included).</a> |
<li><a href="errata22.html#ldso">Feb 9, 1998: MIPS ld.so flaw (patch included).</a> |
</ul> |
</ul> |
|
|
<p> |
<p> |
<li> |
<li> |
<a name="21"></a> |
<a name="21"></a> |
|
|
<h3><font color=#e00000>OpenBSD 2.1 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.1 Security Advisories</font></h3> |
These are the OpenBSD 2.1 advisories. All these problems are solved |
These are the OpenBSD 2.1 advisories. All these problems are solved |
in <a href=22.html>OpenBSD 2.2</a>. Some of these problems still |
in <a href="22.html">OpenBSD 2.2</a>. Some of these problems still |
exist in other operating systems. (If you are running OpenBSD 2.1, we |
exist in other operating systems. (If you are running OpenBSD 2.1, we |
would strongly recommend an upgrade to the newest release, as this |
would strongly recommend an upgrade to the newest release, as this |
patch list only attempts at fixing the most important security |
patch list only attempts at fixing the most important security |
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<li> |
<li> |
<a name="20"></a> |
<a name="20"></a> |
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<h3><font color=#e00000>OpenBSD 2.0 Security Advisories</font></h3> |
<h3><font color="#e00000">OpenBSD 2.0 Security Advisories</font></h3> |
These are the OpenBSD 2.0 advisories. All these problems are solved |
These are the OpenBSD 2.0 advisories. All these problems are solved |
in <a href=21.html>OpenBSD 2.1</a>. Some of these problems still |
in <a href="21.html">OpenBSD 2.1</a>. Some of these problems still |
exist in other operating systems. (If you are running OpenBSD 2.0, we |
exist in other operating systems. (If you are running OpenBSD 2.0, we |
commend you for being there back in the old days!, but you're really |
commend you for being there back in the old days!, but you're really |
missing out if you don't install a new version!) |
missing out if you don't install a new version!) |
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<li>Many others... if people can hunt them down, please let me know |
<li>Many others... if people can hunt them down, please let me know |
and we'll put them up here. |
and we'll put them up here. |
</ul> |
</ul> |
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</dl> |
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<p> |
<p> |
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<a name="watching"></a> |
<a name="watching"></a> |
<li><h3><font color=#e00000>Watching our Changes</font></h3><p> |
<li><h3><font color="#e00000">Watching our Changes</font></h3><p> |
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Since we take a proactive stance with security, we are continually |
Since we take a proactive stance with security, we are continually |
finding and fixing new security problems. Not all of these problems |
finding and fixing new security problems. Not all of these problems |
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<ul> |
<ul> |
<li>If you understand security issues, watch our |
<li>If you understand security issues, watch our |
<a href=mail.html>source-changes mailing list</a> and keep an |
<a href="mail.html">source-changes mailing list</a> and keep an |
eye out for things which appear security related. Since |
eye out for things which appear security related. Since |
exploitability is not proven for many of the fixes we make, |
exploitability is not proven for many of the fixes we make, |
do not expect the relevant commit message to say "SECURITY FIX!". |
do not expect the relevant commit message to say "SECURITY FIX!". |
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<p> |
<p> |
<a name="reporting"></a> |
<a name="reporting"></a> |
<li><h3><font color=#e00000>Reporting problems</font></h3><p> |
<li><h3><font color="#e00000">Reporting problems</font></h3><p> |
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<p> If you find a new security problem, you can mail it to |
<p> If you find a new security problem, you can mail it to |
<a href=mailto:deraadt@openbsd.org>deraadt@openbsd.org</a>. |
<a href="mailto:deraadt@openbsd.org">deraadt@openbsd.org</a>. |
<br> |
<br> |
If you wish to PGP encode it (but please only do so if privacy is very |
If you wish to PGP encode it (but please only do so if privacy is very |
urgent, since it is inconvenient) use this <a href="advisories/pgpkey.txt">pgp key</a>. |
urgent, since it is inconvenient) use this <a href="advisories/pgpkey.txt">pgp key</a>. |
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<p> |
<p> |
<a name="papers"></a> |
<a name="papers"></a> |
<li><h3><font color=#e00000>Further Reading</font></h3><p> |
<li><h3><font color="#e00000">Further Reading</font></h3><p> |
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A number of papers have been written by OpenBSD team members, about security |
A number of papers have been written by OpenBSD team members, about security |
related changes they have done in OpenBSD. The postscript versions of these |
related changes they have done in OpenBSD. The postscript versions of these |
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<ul> |
<ul> |
<li>A Future-Adaptable Password Scheme.<br> |
<li>A Future-Adaptable Password Scheme.<br> |
<a href=events.html#usenix99>Usenix 1999</a>, |
<a href="events.html#usenix99">Usenix 1999</a>, |
by <a href=mailto:provos@openbsd.org>Niels Provos</a>, |
by <a href="mailto:provos@openbsd.org">Niels Provos</a>, |
<a href=mailto:dm@openbsd.org>David Mazieres</a>.<br> |
<a href="mailto:dm@openbsd.org">David Mazieres</a>.<br> |
<a href=papers/bcrypt-paper.ps>paper</a> and |
<a href="papers/bcrypt-paper.ps">paper</a> and |
<a href=papers/bcrypt-slides.ps>slides</a>. |
<a href="papers/bcrypt-slides.ps">slides</a>. |
<p> |
<p> |
<li>Cryptography in OpenBSD: An Overview.<br> |
<li>Cryptography in OpenBSD: An Overview.<br> |
<a href=events.html#usenix99>Usenix 1999</a>, |
<a href="events.html#usenix99">Usenix 1999</a>, |
by <a href=mailto:deraadt@openbsd.org>Theo de Raadt</a>, |
by <a href="mailto:deraadt@openbsd.org">Theo de Raadt</a>, |
<a href=mailto:niklas@openbsd.org>Niklas Hallqvist</a>, |
<a href="mailto:niklas@openbsd.org">Niklas Hallqvist</a>, |
<a href=mailto:art@openbsd.org>Artur Grabowski</a>, |
<a href="mailto:art@openbsd.org">Artur Grabowski</a>, |
<a href=mailto:angelos@openbsd.org>Angelos D. Keromytis</a>, |
<a href="mailto:angelos@openbsd.org">Angelos D. Keromytis</a>, |
<a href=mailto:provos@openbsd.org>Niels Provos</a>.<br> |
<a href="mailto:provos@openbsd.org">Niels Provos</a>.<br> |
<a href=papers/crypt-paper.ps>paper</a> and |
<a href="papers/crypt-paper.ps">paper</a> and |
<a href=papers/crypt-slides.ps>slides</a>. |
<a href="papers/crypt-slides.ps">slides</a>. |
<p> |
<p> |
<li>strlcpy and strlcat -- consistent, safe, string copy and concatenation.<br> |
<li>strlcpy and strlcat -- consistent, safe, string copy and concatenation.<br> |
<a href=events.html#usenix99>Usenix 1999</a>, |
<a href="events.html#usenix99">Usenix 1999</a>, |
by <a href=mailto:millert@openbsd.org>Todd C. Miller</a>, |
by <a href="mailto:millert@openbsd.org">Todd C. Miller</a>, |
<a href=mailto:deraadt@openbsd.org>Theo de Raadt</a>.<br> |
<a href="mailto:deraadt@openbsd.org">Theo de Raadt</a>.<br> |
<a href=papers/strlcpy-paper.ps>paper</a> and |
<a href="papers/strlcpy-paper.ps">paper</a> and |
<a href=papers/strlcpy-slides.ps>slides</a>. |
<a href="papers/strlcpy-slides.ps">slides</a>. |
<p> |
<p> |
<li>Dealing with Public Ethernet Jacks-Switches, Gateways, and Authentication.<br> |
<li>Dealing with Public Ethernet Jacks-Switches, Gateways, and Authentication.<br> |
<a href=events.html#lisa99>LISA 1999</a>, |
<a href="events.html#lisa99">LISA 1999</a>, |
by <a href=mailto:beck@openbsd.org>Bob Beck</a>.<br> |
by <a href="mailto:beck@openbsd.org">Bob Beck</a>.<br> |
<a href=papers/authgw-paper.ps>paper</a> and |
<a href="papers/authgw-paper.ps">paper</a> and |
<a href=papers/authgw-slides.ps>slides</a>. |
<a href="papers/authgw-slides.ps">slides</a>. |
<p> |
<p> |
<li>Encrypting Virtual Memory<br> |
<li>Encrypting Virtual Memory<br> |
<a href=events.html#sec2000>Usenix Security 2000</a>, |
<a href="events.html#sec2000">Usenix Security 2000</a>, |
<a href=mailto:provos@openbsd.org>Niels Provos</a>.<br> |
<a href="mailto:provos@openbsd.org">Niels Provos</a>.<br> |
<a href=papers/swapencrypt.ps>paper</a> and |
<a href="papers/swapencrypt.ps">paper</a> and |
<a href=papers/swapencrypt-slides.ps>slides</a>. |
<a href="papers/swapencrypt-slides.ps">slides</a>. |
<p> |
<p> |
</ul> |
</ul> |
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</ul> |
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</dl> |
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<hr> |
<hr> |
<a href=index.html><img height=24 width=24 src=back.gif border=0 alt=OpenBSD></a> |
<a href="index.html"><img height=24 width=24 src="back.gif" border=0 alt="OpenBSD"></a> |
<a href=mailto:www@openbsd.org>www@openbsd.org</a> |
<a href="mailto:www@openbsd.org">www@openbsd.org</a> |
<br> |
<br> |
<small>$OpenBSD$</small> |
<small>$OpenBSD$</small> |
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