Annotation of www/errata22.html, Revision 1.95
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1.1 deraadt 10:
1.76 deraadt 11: <!--
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1.1 deraadt 16:
1.95 ! bentley 17: <h2 id=OpenBSD>
1.84 deraadt 18: <a href="index.html">
1.95 ! bentley 19: <i>Open</i><b>BSD</b></a>
! 20: 2.2 Errata
1.85 tj 21: </h2>
1.84 deraadt 22: <hr>
1.1 deraadt 23:
1.35 deraadt 24: For errata on a certain release, click below:<br>
1.34 deraadt 25: <a href="errata21.html">2.1</a>,
26: <a href="errata23.html">2.3</a>,
27: <a href="errata24.html">2.4</a>,
28: <a href="errata25.html">2.5</a>,
29: <a href="errata26.html">2.6</a>,
30: <a href="errata27.html">2.7</a>,
31: <a href="errata28.html">2.8</a>,
32: <a href="errata29.html">2.9</a>,
33: <a href="errata30.html">3.0</a>,
34: <a href="errata31.html">3.1</a>,
1.38 deraadt 35: <a href="errata32.html">3.2</a>,
1.40 david 36: <a href="errata33.html">3.3</a>,
1.44 david 37: <a href="errata34.html">3.4</a>,
1.45 miod 38: <a href="errata35.html">3.5</a>,
1.46 deraadt 39: <a href="errata36.html">3.6</a>,
1.69 deraadt 40: <a href="errata37.html">3.7</a>,
1.54 deraadt 41: <br>
1.48 deraadt 42: <a href="errata38.html">3.8</a>,
1.49 deraadt 43: <a href="errata39.html">3.9</a>,
1.50 deraadt 44: <a href="errata40.html">4.0</a>,
1.52 merdely 45: <a href="errata41.html">4.1</a>,
1.53 deraadt 46: <a href="errata42.html">4.2</a>,
1.54 deraadt 47: <a href="errata43.html">4.3</a>,
1.56 deraadt 48: <a href="errata44.html">4.4</a>,
1.57 deraadt 49: <a href="errata45.html">4.5</a>,
1.58 deraadt 50: <a href="errata46.html">4.6</a>,
1.60 deraadt 51: <a href="errata47.html">4.7</a>,
1.61 miod 52: <a href="errata48.html">4.8</a>,
1.62 nick 53: <a href="errata49.html">4.9</a>,
1.63 sthen 54: <a href="errata50.html">5.0</a>,
1.64 deraadt 55: <a href="errata51.html">5.1</a>,
1.65 deraadt 56: <a href="errata52.html">5.2</a>,
1.66 deraadt 57: <a href="errata53.html">5.3</a>,
1.69 deraadt 58: <br>
1.67 deraadt 59: <a href="errata54.html">5.4</a>,
1.75 jsg 60: <a href="errata55.html">5.5</a>,
1.79 deraadt 61: <a href="errata56.html">5.6</a>,
1.82 deraadt 62: <a href="errata57.html">5.7</a>,
1.83 deraadt 63: <a href="errata58.html">5.8</a>,
1.86 deraadt 64: <a href="errata59.html">5.9</a>,
1.89 tj 65: <a href="errata60.html">6.0</a>,
1.91 deraadt 66: <a href="errata61.html">6.1</a>,
1.92 deraadt 67: <a href="errata62.html">6.2</a>,
1.93 deraadt 68: <a href="errata63.html">6.3</a>,
1.94 deraadt 69: <a href="errata64.html">6.4</a>,
70: <a href="errata65.html">6.5</a>.
1.2 deraadt 71: <hr>
72:
1.21 ericj 73: <p>
1.89 tj 74: Patches for the OpenBSD base system are distributed as unified diffs.
75: Each patch contains usage instructions.
76: All the following patches are also available in one
77: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2.tar.gz">tar.gz file</a>
78: for convenience.
1.70 deraadt 79:
80: <p>
1.89 tj 81: Patches for supported releases are also incorporated into the
1.90 tj 82: <a href="stable.html">-stable branch</a>.
1.21 ericj 83:
1.11 deraadt 84: <hr>
85:
1.1 deraadt 86: <ul>
1.77 bentley 87: <li id="ipsec">
1.95 ! bentley 88: <strong>SECURITY FIX</strong>
1.73 deraadt 89: <i>All architectures</i><br>
1.7 deraadt 90: If IPSEC communication is attempted by starting photurisd(8) (which is
1.8 deraadt 91: disabled by default), a system crash may be evoked from remote if
92: an attacker uses some classes of invalid packets.
1.88 tb 93: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/ipsec.patch">
1.7 deraadt 94: A source code patch exists which remedies this problem.</a>
1.9 deraadt 95: <p>
1.77 bentley 96: <li id="xterm-xaw">
1.95 ! bentley 97: <strong>SECURITY FIX</strong>
1.73 deraadt 98: <i>All architectures</i><br>
1.5 matthieu 99: As stated in CERT advisory VB-98.04, there are buffer
1.95 ! bentley 100: overrun problems in <b>xterm</b> related to the input-Method,
1.8 deraadt 101: preeditType, and *Keymap resources. Additional buffer overruns exist in
1.95 ! bentley 102: the <b>Xaw</b> library related to the inputMethod and
1.8 deraadt 103: preeditType resources. The xterm(1) problem represents a security
104: vulnerability for any platform where xterm is installed setuid-root
105: (as is the case for all OpenBSD platforms). The Xaw problem represents
106: a security vulnerability for any setuid-root program that uses the Xaw
107: library (including xterm). Patch1 from XFree86 3.3.2 corrects
108: these problems.
1.88 tb 109: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/xterm-xaw.patch">
1.6 deraadt 110: We provide a version of this patch file specifically for the OpenBSD 2.2 tree</a>.
1.5 matthieu 111: <p>
1.77 bentley 112: <li id="rmjob">
1.95 ! bentley 113: <strong>SECURITY FIX</strong>
1.73 deraadt 114: <i>All architectures</i><br>
1.1 deraadt 115: An exploitable buffer mismanagement exists in a subroutine used by
116: lprm and lpd. The problem is exploitable by users on a particular
1.95 ! bentley 117: machine if there is an entry in <b>/etc/printcap</b> which
1.1 deraadt 118: points at a remote printer.
1.88 tb 119: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/rmjob.patch">
1.1 deraadt 120: A patch is available which corrects this behaviour</a>.
121: <p>
1.77 bentley 122: <li id="uucpd">
1.95 ! bentley 123: <strong>SECURITY FIX</strong>
1.73 deraadt 124: <i>All architectures</i><br>
1.1 deraadt 125: A DNS-based vulnerability exists when uucpd is used. By default uucpd
126: is not enabled in the OpenBSD releases, but some sites may have enabled it.
1.88 tb 127: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/uucpd.patch">
1.1 deraadt 128: A patch is available which corrects this behaviour</a>.
129: <p>
1.77 bentley 130: <li id="named">
1.95 ! bentley 131: <strong>SECURITY FIX</strong>
1.73 deraadt 132: <i>All architectures</i><br>
1.1 deraadt 133: A vulnerability exists when (and only when) /etc/named.conf has the
1.95 ! bentley 134: <b>fake-iquery</b> option enabled.
1.88 tb 135: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/named.patch">
1.1 deraadt 136: A patch is available which corrects this behaviour</a>.
137: <p>
1.77 bentley 138: <li id="ping">
1.95 ! bentley 139: <strong>SECURITY FIX</strong>
1.73 deraadt 140: <i>All architectures</i><br>
1.1 deraadt 141: A vulnerability exists in ping(8); if the -R option is used to record
142: routes, an attacker can spoof a reply packet that will overflow inside
143: ping. Preliminary investigation makes it look the worst attack
144: possible is to make ping crash, but one never knows...
1.88 tb 145: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/ping.patch">
1.1 deraadt 146: A patch is available which corrects this behaviour</a>.
147: <p>
1.77 bentley 148: <li id="sourceroute">
1.95 ! bentley 149: <strong>SECURITY FIX</strong> <i>All architectures</i><br>
! 150: If the sysctl variable <b>net.inet.ip.forwarding</b> is
! 151: enabled (value 1), but the variable <b>net.inet.ip.sourceroute</b>
1.1 deraadt 152: is disabled (value 0), the kernel will block source routed packets from
153: going through, but will still accept source routing packets destined for
1.95 ! bentley 154: itself. Our fix changes the <b>net.inet.ip.sourceroute</b>
1.1 deraadt 155: variable semantics to mean that all source routed packets should
156: be blocked completely.
1.88 tb 157: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/sourceroute.patch">
1.1 deraadt 158: A kernel patch is provided</a>.
159: <p>
1.77 bentley 160: <li id="ruserok">
1.95 ! bentley 161: <strong>SECURITY FIX</strong>
1.73 deraadt 162: <i>All architectures</i><br>
1.1 deraadt 163: A combination localhost+remote host security problem exists if a
1.26 jsyn 164: local user running a setuid binary causes a non-existent root .rhosts
1.1 deraadt 165: file to be created via a symbolic link with a specific kind of corefile,
166: and then subsequently uses rsh/rlogin to enter the machine from remote.
167: A similar exploit might also be possible using sshd which lacks any code
168: for checking for deviations from the expected format in the .rhosts or
169: .shosts files, but we have not confirmed this yet. The following two
170: fixes are recommended:
171: <p>
172: <ul>
173: <li>
1.88 tb 174: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/nosuidcoredump.patch">
1.1 deraadt 175: (1) A kernel patch which adds a new sysctl option which permits the
176: administrator to decide whether setuid corefiles should be written or not</a>.
177: <p>
1.88 tb 178: <li><a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/rcmd.patch">
1.1 deraadt 179: (2) Replaces the libc ruserok() function with a more paranoid
180: version which detects bogus looking .rhosts files better.</a>
181: </ul>
182: <p>
183: If the
184: first patch is used to stop setuid coredumps, then the second patch is
185: not as important.
186: This problem is fixed much better in OpenBSD-current, where the kernel's
187: symbolic link handling has been improved such that coredumping will not
188: create a file on the other side of a symbolic link. Such a patch is not
189: possible for the 4.4lite1 VFS layer in the OpenBSD 2.2 kernel.<p>
190: The problem with the ruserok() function appears to also exist in
191: ssh 1.2.21 and previous (the ssh people have been alerted).
192: <p>
1.77 bentley 193: <li id="mmap">
1.95 ! bentley 194: <strong>SECURITY FIX</strong> <i>All architectures</i><br>
1.1 deraadt 195: A bug in the vm system permits a file descriptor opened read-only on a
196: device, to later on be mmap(2)'d read-write, and then modified. This
197: does not result in a security hole by itself, but it does violate the
198: safety semantics which securelevels are supposed to provide. If a user
199: manages to gain kmem group permissions, using this problem they can then
200: gain root trivially and/or turn securelevels off.
1.88 tb 201: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/vm_mmap.patch">
1.1 deraadt 202: A kernel patch is available which corrects this behaviour (this is
203: revision 3 of this patch)</a>.
204: <p>
1.95 ! bentley 205: <li><strong>BUILD PROCESS FIX</strong>
1.73 deraadt 206: <i>All architectures</i><br>
1.1 deraadt 207: Building an object tree from a read-only source tree (such as off a CDROM)
208: may fail under certain circumstances (e.g. when creating a symlink on sparc
209: whose target name is exactly 33 characters). As a workaround you have to
210: either provide the source tree read/write, or install a newer version of
1.67 deraadt 211: /usr/bin/readlink.
1.88 tb 212: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/readlink.c">
1.1 deraadt 213: A replacement source file exists</a>.
214: <p>
1.77 bentley 215: <li id="mountd">
1.95 ! bentley 216: <strong>SECURITY FIX</strong>
1.73 deraadt 217: <i>All architectures</i><br>
1.1 deraadt 218: If a line in /etc/exports which contains hostnames results in an empty
219: list because none of the supplied hostnames is known, mountd(8) will
220: accidentally export the filesystem to the world.
1.88 tb 221: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/mountd.patch">
1.1 deraadt 222: A patch is available which corrects this behaviour</a>.
223: <p>
1.95 ! bentley 224: <li><strong>RELIABILITY FIX</strong>
1.73 deraadt 225: <i>All architectures</i><br>
1.1 deraadt 226: Setting the MSG_EOR flag on a tcp packet in the send(2) family of
227: system calls could cause a kernel panic.
1.88 tb 228: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/common/send.patch">
1.1 deraadt 229: A patch</a> to return EINVAL in this case is available.
230: <p>
1.77 bentley 231: <li id="f00f">
1.95 ! bentley 232: <strong>RELIABILITY FIX</strong><br>
1.26 jsyn 233: The Intel P5 F00F bug was discovered after the CDRs had already been
1.1 deraadt 234: sent to the manufacturer. This problem permits any user who has an account
235: to lock your machine up using a 4-line program. The problem only affects
236: Intel P5 processors (the i386, i486, P-Pro, and P-II are not vulnerable,
237: nor are processors by other manufacturers).
1.88 tb 238: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/f00f.patch">
1.1 deraadt 239: A kernel source-code patch is available</a>.
240: <p>
1.95 ! bentley 241: <li><strong>FUNCTIONALITY FIX</strong><br>
1.1 deraadt 242: Some Linux binaries will execute in SVR4 emulation mode, which is
1.12 aaron 243: definitely a problem for people who need Linux emulation to work correctly.
1.1 deraadt 244: To solve this mis-identification problem,
1.88 tb 245: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/compat_linux.patch">
1.1 deraadt 246: a patch file is provided</a>.
247: <p>
1.95 ! bentley 248: <li><strong>RELIABILITY FIX</strong><br>
1.1 deraadt 249: APM can crash on machines without it.
1.88 tb 250: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/i386/apm.patch">
1.1 deraadt 251: A kernel source-code patch is available</a>.
252: <p>
1.95 ! bentley 253: <li><strong>INSTALLATION PROCESS FLAW</strong><br>
1.25 pvalchev 254: A few people are running into this problem, particularly if they had some
1.1 deraadt 255: other *BSD operating system on their machine before trying OpenBSD: if after
256: installation onto an IDE-based machine, the kernel fails to mount the root
257: partition because it thinks that it should be opening sd0 (0x400), this means
258: you have incorrectly setup your disklabel for the IDE drive -- the disklabel
259: is indicating that the drive is SCSI.
260: To repair this, use the floppy to run "disklabel -E wd0", then using the
261: "edit" command ensure the type field is set to "ST506".
262: <p>
1.95 ! bentley 263: <li><strong>NEW SOFTWARE</strong><br>
1.1 deraadt 264: Unfortunately, X11 binaries for the mac68k did not manage to make it onto the
265: CDROM. However, X11 for the mac68k is immediately available from
1.88 tb 266: <a href="https://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/X11/X11R6.tar.gz">
267: https://ftp.OpenBSD.org/pub/OpenBSD/2.2/mac68k/X11/X11R6.tar.gz</a>. Please
268: be sure to read the <a href="https://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/X11/README.X11">README file</a> also in that directory for instructions on installing
1.1 deraadt 269: and setting up X.
270: <p>
1.95 ! bentley 271: <li><strong>INSTALLATION PROCESS FLAW</strong><br>
1.1 deraadt 272: As shipped on the CDROM, both the
1.88 tb 273: <a href="https://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k/bsd-generic.tar.gz">
1.1 deraadt 274: generic kernel</a>
275: and the
1.88 tb 276: <a href="https://ftp.openbsd.org/pub/OpenBSD/2.2/bsd-genericbsc.tar.gz">
1.1 deraadt 277: genericsbc kernel</a>
278: extract themselves into the wrong place in the filesystem.
1.95 ! bentley 279: Both <em>should</em> extract a kernel named <code>/bsd</code>, but they extract
! 280: the kernel into <code>/usr/src/sys/arch/mac68k/compile</code> instead.
1.1 deraadt 281: <p>
282: This has been fixed on the ftp release of <a href=22.html>OpenBSD 2.2</a>, and
1.88 tb 283: fresh kernels are available from <a href="https://ftp.openbsd.org/pub/OpenBSD/2.2/mac68k">
1.59 sthen 284: http://ftp.OpenBSD.ORG/pub/OpenBSD/2.2/mac68k/</a>. If at all possible,
1.1 deraadt 285: installing these kernels is recommended.
286: <p>
287: A number of possible workarounds exist if you don't have easy access to ftp
288: the updated kernels. The simplest of these is to use a
289: MacOS program to uncompress and untar the kernel aad use the Installer's
290: mini-shell to "cpin" the kernel. Alternately, you could install the kernel
1.95 ! bentley 291: with the Installer and use the mini-shell to move the binary from <code>/usr/src/...</code> to <code>/bsd</code>.
1.1 deraadt 292: <p>
1.95 ! bentley 293: <li><strong>RELIABILITY FIX</strong><br>
1.25 pvalchev 294: Older 4/xxx systems (particularly the 4/300's) cannot boot
1.1 deraadt 295: with the 2.2 kernel due to bugs in the scsi device driver.
1.88 tb 296: <a href="https://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/esp.patch">
1.1 deraadt 297: A kernel source patch is available</a>.
298: Replacement kernels are available for:
1.88 tb 299: <a href="https://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/bsd">bsd</a>,
300: <a href="https://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/bsd.scsi3">bsd.scsi3</a>,
1.1 deraadt 301: and a replacement for bsd.rd is coming soon.
302: <p>
1.77 bentley 303: <li id="sparciommu">
1.95 ! bentley 304: <strong>RELIABILITY FIX</strong><br>
1.1 deraadt 305: SPARCstation 4 and 5 (Microsparc 2) users may see kernel panics when
306: using a custom kernel configured for option sun4m only.
1.88 tb 307: <a href="https://ftp.OpenBSD.org/pub/OpenBSD/patches/2.2/sparc/sun4m.patch">
1.1 deraadt 308: A workaround (kernel source patch) is available</a>. Apply the patch and
309: then re-build your kernel.
310: <p>
1.95 ! bentley 311: <li><strong>FUNCTIONALITY FIX</strong><br>
1.1 deraadt 312: Missing Xamiga manual pages. Get
1.88 tb 313: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/amiga/Xamiga-manual.tgz">
1.1 deraadt 314: this package</a> and execute, <i>as root</i>:<br>
1.95 ! bentley 315: <b><b># </b>pkg_add Xamiga-manual.tgz</b><br>
1.1 deraadt 316: The MD5 checksum of this package is:<br>
317: <b>MD5 (Xamiga-manual.tgz) = 2362a7857264b9d17f65cca258b42031</b><p>
1.95 ! bentley 318: <li><strong>FUNCTIONALITY FIX</strong><br>
1.1 deraadt 319: The Ariadne ethernet support was broken, there will be both binary and
320: source level fixes available shortly. If you are in a hurry mail
1.37 naddy 321: <a href="mailto:niklas@openbsd.org">Niklas</a> for a test kernel.<p>
1.72 deraadt 322: <p>
1.95 ! bentley 323: <li><strong>FUNCTIONALITY FIX</strong><br>
1.67 deraadt 324: There is a Year-1998 problem in the time-setting code (which causes the
1.1 deraadt 325: date and time to be set incorrectly after a reboot in 1998).
1.88 tb 326: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/clock.patch">
1.1 deraadt 327: A source code patch file is available</a> plus replacement installation
328: kernels for the 2.2 release at
1.88 tb 329: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd.NFS">bsd.NFS</a>,
330: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd">bsd</a>,
331: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/bsd.rz0">bsd.rz0</a>.
1.1 deraadt 332: <p>
1.95 ! bentley 333: <li><strong>FUNCTIONALITY FIX</strong><br>
1.1 deraadt 334: X11 support for the 3min and 3maxplus machines was broken
335: due to a kernel bug.
1.88 tb 336: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/fb.patch">
1.1 deraadt 337: A source code patch is available</a>.
338: <p>
1.77 bentley 339: <li id="ldso">
1.95 ! bentley 340: <strong>SECURITY FIX</strong><br>
! 341: A security problem in the shared library linker <b>ld.so</b>
1.1 deraadt 342: requires that you replace it with a new binary. The following binary
343: will work on both pmax and arc machines.
1.88 tb 344: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/ld.so">
1.1 deraadt 345: The replacement binary is here</a>.
346: <p>
1.95 ! bentley 347: <li><strong>SECURITY FIX</strong><br>
! 348: A security problem in the shared library linker <b>ld.so</b> requires
1.1 deraadt 349: that you replace it with a new binary. The following binary
350: will work on both pmax and arc machines.
1.88 tb 351: <a href="https://ftp.openbsd.org/pub/OpenBSD/patches/2.2/pmax/ld.so">
1.1 deraadt 352: The replacement binary is here</a>.
353: <p>
1.95 ! bentley 354: <li><strong>MISSING FUNCTIONALITY</strong><br>
1.4 deraadt 355: Network Address Translation and other parts of IP Filtering do not work
1.1 deraadt 356: on the alpha. This will be fixed in the 2.3 release, and perhaps earlier
357: in a snapshot. There is no patch for 2.2.
358: <p>
1.86 deraadt 359:
1.1 deraadt 360: </ul>
1.64 deraadt 361:
1.78 tedu 362: <hr>
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