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                      4: <title>OpenBSD release errata</title>
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1.10      pauls      15: <img alt="[OpenBSD]" height=30 width=141 SRC="images/smalltitle.gif">
1.1       deraadt    16: <h2><font color=#0000e0>
                     17: This is the OpenBSD 2.2 release errata & patch list:
                     18: </font></h2>
                     19:
1.2       deraadt    20: <hr>
                     21: <a href=errata21.html>For 2.1 errata, please refer here</a>.<br>
                     22: <a href=errata.html>For 2.3 errata, please refer here</a>.<br>
                     23: <hr>
                     24:
1.11      deraadt    25: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.3.tar.gz>
                     26: You can also fetch a tar.gz file containing all the following patches</a>.
                     27: This file is updated once a day.
                     28:
                     29: <hr>
                     30:
1.1       deraadt    31: <ul>
                     32: <a name=all></a>
                     33: <li><h3><font color=#e00000>All architectures</font></h3>
                     34: <ul>
1.9       deraadt    35: <a name=ipsec></a>
1.5       matthieu   36: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
1.7       deraadt    37: If IPSEC communication is attempted by starting photurisd(8) (which is
1.8       deraadt    38: disabled by default), a system crash may be evoked from remote if
                     39: an attacker uses some classes of invalid packets.
1.7       deraadt    40: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.3/common/ipsec.patch>
                     41: A source code patch exists which remedies this problem.</a>
1.9       deraadt    42: <p>
                     43: <a name=xterm-xaw></a>
1.7       deraadt    44: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
1.5       matthieu   45: As stated in CERT advisory VB-98.04, there are buffer
1.8       deraadt    46: overrun problems in <strong>xterm</strong> related to the input-Method,
                     47: preeditType, and *Keymap resources. Additional buffer overruns exist in
                     48: the <strong>Xaw</strong> library related to the inputMethod and
                     49: preeditType resources.   The xterm(1) problem represents a security
                     50: vulnerability for any platform where xterm is installed setuid-root
                     51: (as is the case for all OpenBSD platforms).  The Xaw problem represents
                     52: a security vulnerability for any setuid-root program that uses the Xaw
                     53: library (including xterm).  Patch1 from XFree86 3.3.2 corrects
                     54: these problems.
1.5       matthieu   55: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/xterm-xaw.patch>
1.6       deraadt    56: We provide a version of this patch file specifically for the OpenBSD 2.2 tree</a>.
1.5       matthieu   57: <p>
1.1       deraadt    58: <a name=rmjob></a>
                     59: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                     60: An exploitable buffer mismanagement exists in a subroutine used by
                     61: lprm and lpd.  The problem is exploitable by users on a particular
                     62: machine if there is an entry in <strong>/etc/printcap</strong> which
                     63: points at a remote printer.
                     64: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/rmjob.patch>
                     65: A patch is available which corrects this behaviour</a>.
                     66: <p>
                     67: <a name=uucpd></a>
                     68: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                     69: A DNS-based vulnerability exists when uucpd is used.  By default uucpd
                     70: is not enabled in the OpenBSD releases, but some sites may have enabled it.
                     71: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/uucpd.patch>
                     72: A patch is available which corrects this behaviour</a>.
                     73: <p>
                     74: <a name=named></a>
                     75: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                     76: A vulnerability exists when (and only when) /etc/named.conf has the
                     77: <strong>fake-iquery</strong> option enabled.
                     78: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/named.patch>
                     79: A patch is available which corrects this behaviour</a>.
                     80: <p>
                     81: <a name=ping></a>
                     82: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                     83: A vulnerability exists in ping(8); if the -R option is used to record
                     84: routes, an attacker can spoof a reply packet that will overflow inside
                     85: ping.  Preliminary investigation makes it look the worst attack
                     86: possible is to make ping crash, but one never knows...
                     87: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/ping.patch>
                     88: A patch is available which corrects this behaviour</a>.
                     89: <p>
                     90: <a name=sourceroute></a>
                     91: <li><strong><font color=#009000>SECURITY FIX</strong></font><br>
                     92: If the sysctl variable <strong>net.inet.ip.forwarding</strong> is
                     93: enabled (value 1), but the variable <strong>net.inet.ip.sourceroute</strong>
                     94: is disabled (value 0), the kernel will block source routed packets from
                     95: going through, but will still accept source routing packets destined for
                     96: itself.  Our fix changes the <strong>net.inet.ip.sourceroute</strong>
                     97: variable semantics to mean that all source routed packets should
                     98: be blocked completely.
                     99: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/sourceroute.patch>
                    100: A kernel patch is provided</a>.
                    101: <p>
                    102: <a name=ruserok></a>
                    103: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                    104: A combination localhost+remote host security problem exists if a
                    105: local user running a setuid binary causes a non-existant root .rhosts
                    106: file to be created via a symbolic link with a specific kind of corefile,
                    107: and then subsequently uses rsh/rlogin to enter the machine from remote.
                    108: A similar exploit might also be possible using sshd which lacks any code
                    109: for checking for deviations from the expected format in the .rhosts or
                    110: .shosts files, but we have not confirmed this yet.  The following two
                    111: fixes are recommended:
                    112: <p>
                    113: <ul>
                    114: <li>
                    115: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/nosuidcoredump.patch>
                    116: (1) A kernel patch which adds a new sysctl option which permits the
                    117: administrator to decide whether setuid corefiles should be written or not</a>.
                    118: <p>
                    119: <li><a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/rcmd.patch>
                    120: (2) Replaces the libc ruserok() function with a more paranoid
                    121: version which detects bogus looking .rhosts files better.</a>
                    122: </ul>
                    123: <p>
                    124: If the
                    125: first patch is used to stop setuid coredumps, then the second patch is
                    126: not as important.
                    127: This problem is fixed much better in OpenBSD-current, where the kernel's
                    128: symbolic link handling has been improved such that coredumping will not
                    129: create a file on the other side of a symbolic link.  Such a patch is not
                    130: possible for the 4.4lite1 VFS layer in the OpenBSD 2.2 kernel.<p>
                    131: The problem with the ruserok() function appears to also exist in
                    132: ssh 1.2.21 and previous (the ssh people have been alerted).
                    133: <p>
                    134: <a name=mmap></a>
                    135: <li><strong><font color=#009000>SECURITY FIX</strong></font><br>
                    136: A bug in the vm system permits a file descriptor opened read-only on a
                    137: device, to later on be mmap(2)'d read-write, and then modified.  This
                    138: does not result in a security hole by itself, but it does violate the
                    139: safety semantics which securelevels are supposed to provide.  If a user
                    140: manages to gain kmem group permissions, using this problem they can then
                    141: gain root trivially and/or turn securelevels off.
                    142: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/vm_mmap.patch>
                    143: A kernel patch is available which corrects this behaviour (this is
                    144: revision 3 of this patch)</a>.
                    145: <p>
                    146: <li><font color=#009000><strong>BUILD PROCESS FIX</strong></font><br>
                    147: Building an object tree from a read-only source tree (such as off a CDROM)
                    148: may fail under certain circumstances (e.g. when creating a symlink on sparc
                    149: whose target name is exactly 33 characters).  As a workaround you have to
                    150: either provide the source tree read/write, or install a newer version of
                    151: /usr/bin/readlink.
                    152: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/readlink.c>
                    153: A replacement source file exists</a>.
                    154: <p>
                    155: <a name=mountd></a>
                    156: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                    157: If a line in /etc/exports which contains hostnames results in an empty
                    158: list because none of the supplied hostnames is known, mountd(8) will
                    159: accidentally export the filesystem to the world.
                    160: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/mountd.patch>
                    161: A patch is available which corrects this behaviour</a>.
                    162: <p>
                    163: <li><font color=#009000><strong>RELIABILITY FIX</strong></font><br>
                    164: Setting the MSG_EOR flag on a tcp packet in the send(2) family of
                    165: system calls could cause a kernel panic.
                    166: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/send.patch>
                    167: A patch</a> to return EINVAL in this case is available.
                    168: <p>
                    169: </ul>
                    170: <a name=i386></a>
                    171: <li><h3><font color=#e00000>i386</font></h3>
                    172: <ul>
                    173: <a name=f00f></a>
                    174: <li><font color=#009000><strong>RELIABILITY FIX</strong></font><br>
                    175: The Intel P5 F00F bug was discovered after the CDR's had already been
                    176: sent to the manufacturer.  This problem permits any user who has an account
                    177: to lock your machine up using a 4-line program.  The problem only affects
                    178: Intel P5 processors (the i386, i486, P-Pro, and P-II are not vulnerable,
                    179: nor are processors by other manufacturers).
                    180: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/f00f.patch>
                    181: A kernel source-code patch is available</a>.
                    182: <p>
                    183: <li><font color=#009000><strong>FUNCTIONALITY FIX</strong></font><br>
                    184: Some Linux binaries will execute in SVR4 emulation mode, which is
1.12    ! aaron     185: definitely a problem for people who need Linux emulation to work correctly.
1.1       deraadt   186: To solve this mis-identification problem,
                    187: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/compat_linux.patch>
                    188: a patch file is provided</a>.
                    189: <p>
                    190: <li><font color=#009000><strong>RELIABILITY FIX</strong></font><br>
                    191: APM can crash on machines without it.
                    192: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/apm.patch>
                    193: A kernel source-code patch is available</a>.
                    194: <p>
                    195: <li><font color=#009000><strong>INSTALLATION PROCESS FLAW</strong></font><br>
                    196: A few people are running into this problem, particularily if they had some
                    197: other *BSD operating system on their machine before trying OpenBSD: if after
                    198: installation onto an IDE-based machine, the kernel fails to mount the root
                    199: partition because it thinks that it should be opening sd0 (0x400), this means
                    200: you have incorrectly setup your disklabel for the IDE drive -- the disklabel
                    201: is indicating that the drive is SCSI.
                    202: To repair this, use the floppy to run "disklabel -E wd0", then using the
                    203: "edit" command ensure the type field is set to "ST506".
                    204: <p>
                    205: </ul>
                    206: <a name=mac68k></a>
                    207: <li><h3><font color=#e00000>mac68k</font></h3>
                    208: <ul>
                    209: <li><font color=#009000><strong>NEW SOFTWARE</strong></font><br>
                    210: Unfortunately, X11 binaries for the mac68k did not manage to make it onto the
                    211: CDROM.  However, X11 for the mac68k is immediately available from
                    212: <a href="ftp://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/X11/X11R6.tar.gz">
                    213: ftp://ftp.OpenBSD.org/pub/OpenBSD/2.2/mac68k/X11/X11R6.tar.gz</a>.  Please
                    214: be sure to read the <a href="ftp://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/X11/README.X11">README file</a> also in that directory for instructions on installing
                    215: and setting up X.
                    216: <p>
                    217: <li><font color=#009000><strong>INSTALLATION PROCESS FLAW</strong></font><br>
                    218: As shipped on the CDROM, both the
                    219: <a href="ftp://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/bsd-generic.tar.gz">
                    220: generic kernel</a>
                    221: and the
                    222: <a href="ftp://ftp.openbsd.org/pub/OpenBSD/2.2/bsd-genericbsc.tar.gz">
                    223: genericsbc kernel</a>
                    224: extract themselves into the wrong place in the filesystem.
                    225: Both <strong>should</strong> extract a kernel named <tt>/bsd</tt>, but they extract
                    226: the kernel into <tt>/usr/src/sys/arch/mac68k/compile</tt> instead.
                    227: <p>
                    228: This has been fixed on the ftp release of <a href=22.html>OpenBSD 2.2</a>, and
                    229: fresh kernels are available from <a href="ftp://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k">
                    230: ftp://ftp.OpenBSD.ORG/pub/OpenBSD/2.2/mac68k/</a>.  If at all possible,
                    231: installing these kernels is recommended.
                    232: <p>
                    233: A number of possible workarounds exist if you don't have easy access to ftp
                    234: the updated kernels.  The simplest of these is to use a
                    235: MacOS program to uncompress and untar the kernel aad use the Installer's
                    236: mini-shell to "cpin" the kernel.  Alternately, you could install the kernel
                    237: with the Installer and use the mini-shell to move the binary from <tt>/usr/src/...</tt> to <tt>/bsd</tt>.
                    238: <p>
                    239: </ul>
                    240: <a name=sparc></a>
                    241: <li><h3><font color=#e00000>sparc</font></h3>
                    242: <ul>
                    243: <li><font color=#009000><strong>RELIABILITY FIX</strong></font><br>
                    244: Older 4/xxx systems (particularily the 4/300's) cannot boot
                    245: with the 2.2 kernel due to bugs in the scsi device driver.
                    246: <a href=ftp://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/esp.patch>
                    247: A kernel source patch is available</a>.
                    248: Replacement kernels are available for:
                    249: <a href=ftp://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/bsd>bsd</a>,
                    250: <a href=ftp://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/bsd.scsi3>bsd.scsi3</a>,
                    251: and a replacement for bsd.rd is coming soon.
                    252: <p>
                    253: <a name=sparciommu></a>
                    254: <li><font color=#009000><strong>RELIABILITY FIX</strong></font><br>
                    255: SPARCstation 4 and 5 (Microsparc 2) users may see kernel panics when
                    256: using a custom kernel configured for option sun4m only.
                    257: <a href=ftp://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/sun4m.patch>
                    258: A workaround (kernel source patch) is available</a>.  Apply the patch and
                    259: then re-build your kernel.
                    260: <p>
                    261: </ul>
                    262: <li><h3><font color=#e00000>amiga</font></h3>
                    263: <p>
                    264: <ul>
                    265: <li><font color=#009000><strong>FUNCTIONALITY FIX</strong></font><br>
                    266: Missing Xamiga manual pages.  Get
                    267: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/amiga/Xamiga-manual.tgz>
                    268: this package</a> and execute, <i>as root</i>:<br>
                    269: <strong><b># </b>pkg_add Xamiga-manual.tgz</strong><br>
                    270: The MD5 checksum of this package is:<br>
                    271: <b>MD5 (Xamiga-manual.tgz) = 2362a7857264b9d17f65cca258b42031</b><p>
                    272: <li><font color=#009000><strong>FUNCTIONALITY FIX</strong></font><br>
                    273: The Ariadne ethernet support was broken, there will be both binary and
                    274: source level fixes available shortly.  If you are in a hurry mail
                    275: <a href=mailto:niklas@openbsd.org>Niklas</a> for a test kernel.<p>
                    276: </ul>
                    277: <a name=pmax></a>
                    278: <li><h3><font color=#e00000>pmax</font></h3>
                    279: <ul>
                    280: <li><font color=#009000><strong>FUNCTIONALITY FIX</strong></font><br>
                    281: There is a Year-1998 problem in the time-setting code (which causes the
                    282: date and time to be set incorrectly after a reboot in 1998).
                    283: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/clock.patch>
                    284: A source code patch file is available</a> plus replacement installation
                    285: kernels for the 2.2 release at
                    286: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd.NFS>bsd.NFS</a>,
                    287: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd>bsd</a>,
                    288: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd.rz0>bsd.rz0</a>.
                    289: <p>
                    290: <li><font color=#009000><strong>FUNCTIONALITY FIX</strong></font><br>
                    291: X11 support for the 3min and 3maxplus machines was broken
                    292: due to a kernel bug.
                    293: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/fb.patch>
                    294: A source code patch is available</a>.
                    295: <p>
                    296: <a name=ldso></a>
                    297: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                    298: A security problem in the shared library linker <strong>ld.so</strong>
                    299: requires that you replace it with a new binary.  The following binary
                    300: will work on both pmax and arc machines.
                    301: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/ld.so>
                    302: The replacement binary is here</a>.
                    303: <p>
                    304: </ul>
                    305: <a name=arc></a>
                    306: <li><h3><font color=#e00000>arc</font></h3>
                    307: <ul>
                    308: <li><font color=#009000><strong>SECURITY FIX</strong></font><br>
                    309: A security problem in the shared library linker <strong>ld.so</strong> requires
                    310: that you replace it with a new binary.  The following binary
                    311: will work on both pmax and arc machines.
                    312: <a href=ftp://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/ld.so>
                    313: The replacement binary is here</a>.
                    314: <p>
                    315: </ul>
                    316: <li><h3><font color=#e00000>alpha</font></h3>
                    317: <p>
                    318: <ul>
                    319: <li><font color=#009000><strong>MISSING FUNCTIONALITY</strong></font><br>
1.4       deraadt   320: Network Address Translation and other parts of IP Filtering do not work
1.1       deraadt   321: on the alpha.  This will be fixed in the 2.3 release, and perhaps earlier
                    322: in a snapshot.  There is no patch for 2.2.
                    323: <p>
                    324: </ul>
                    325: <li><h3><font color=#e00000>hp300</font></h3>
                    326: <p>
                    327: <ul>
                    328: <li>No problems identified yet.
                    329: <p>
                    330: </ul>
                    331: <li><h3><font color=#e00000>mvme68k</font></h3>
                    332: <ul>
                    333: <li>No problems identified yet.
                    334: <p>
                    335: </ul>
                    336: </ul>
                    337: <br>
                    338:
                    339: <hr>
1.3       deraadt   340: <a href=errata21.html>For 2.1 errata, please refer here</a>.<br>
                    341: <a href=errata.html>For 2.3 errata, please refer here</a>.<br>
1.1       deraadt   342: <hr>
1.2       deraadt   343:
1.10      pauls     344: <a href=orders.html><img height=24 width=24 src=back.gif border=0 alt=OpenBSD></a>
1.1       deraadt   345: <a href=mailto:www@openbsd.org>www@openbsd.org</a>
1.12    ! aaron     346: <br><small>$OpenBSD: errata22.html,v 1.11 1998/08/05 08:26:35 deraadt Exp $</small>
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