OpenBSD 2.6 errata

This is the OpenBSD 2.6 release errata & patch list:

For OpenBSD patch branch information, please refer here.

For errata on a certain release, click below:
2.1, 2.2, 2.3, 2.4, 2.5, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7,
3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3,
5.4, 5.5.

You can also fetch a tar.gz file containing all the following patches. This file is updated once a day.

The patches below are available in CVS via the OPENBSD_2_6 patch branch.

For more detailed information on how to install patches to OpenBSD, please consult the OpenBSD FAQ.

024: SECURITY FIX: May 26, 2000 All architectures
Kernel contained an undocumented system call used to lock semaphore operations while they were being sampled by the ipcs(1) command. This locking could be used as a local denial of service attack which would block the exiting of processes which had semaphore resources allocated. Processes not using semaphores are not affected, so the actual effect is very minimal.
A source code patch exists which remedies this problem.
023: SECURITY FIX: May 25, 2000 All architectures
A misuse of ipf(8) keep-state rules can result in firewall rules being bypassed. This patch also includes fixes for an unaligned timestamp issue, and reliability fixes for ipmon and the in-kernel ftp proxy.
A source code patch exists which remedies this problem. It updates ipf to version 3.3.16.
022: SECURITY FIX: May 25, 2000 All architectures
xlockmore has a localhost attack against it which allows recovery of the encrypted hash of the root password. The damage to systems using DES passwords from this attack is pretty heavy, but to systems with a well-chosen root password under blowfish encoding (see crypt(3)) the impact is much reduced.
(Aside: We do not consider this a localhost root hole in the default install, since we have not seen a fast blowfish cracker yet ;-)
A source code patch exists which remedies this problem. This is the 2nd patch designed to solve this problem.
021: RZSZ SNOOPING: Jan 31, 2000 All architectures
The rzsz port was removed from the ports collection, as it collects and sends user information to a designated email address, effectively spying on you. It is recommended that you remove this package if you installed it.
020: LIBRARY IMPROVEMENT: Jan 26, 2000 All architectures
syslog(3) would not try to reopen the socket, thus, nightly newsyslog(8) would cause syslogd(8) to not see new messages. A source code patch exists which remedies this problem.
019: DRIVER IMPROVEMENT: Jan 20, 2000 All architectures
Intel fxp cards with National Semiconductor PHYs (nsphy) have trouble negotiating and maintaining 100Mb link integrity.
A source code patch exists which remedies this problem.
018: SECURITY FIX: Jan 20, 2000 All architectures
Systems running with procfs enabled and mounted are vulnerable to having the stderr output of setuid processes directed onto a pre-seeked descriptor onto the stack in their own procfs memory.
Note that procfs is not mounted by default in OpenBSD.
A source code patch exists which remedies this problem.
017: FUNCTIONALITY ADDITION: Nov 14, 1999 All architectures
Fortran doesn't work right. The file /usr/include/g2c.h is missing in the release.
A source code patch exists which remedies this problem. The patch fixes the source tree and describes how to properly add the include file to your system.
016: SECURITY FIX: Dec 2, 1999 All architectures
A buffer overflow in the RSAREF code included in the USA version of the libssl package (called sslUSA, is possibly exploitable in isakmpd if SSL/RSA features are enabled or used.
OpenSSH and httpd (with -DSSL) are not vulnerable.
NOTE: International users using the ssl26 package are not affected.
To check what package you are using, use
```
# pkg_info sslUSA26
```
The patched library says:
"ssl26.1 USA-only non-commercial crypto libs incl. SSL & RSA"
Non-commercial USA users who installed the ssl package before December 3 should upgrade their sslUSA26 package using:
```
# pkg_delete sslUSA26
# pkg_add -v sslUSA26.tar.gz
```
Using the new sslUSA26.tar.gz files which have been placed on the FTP mirrors.
For more information, see the advisory.
NOTE: this problem turned out to not be unexploitable in OpenSSH.
015: Y2K FIX: Jan 9, 2000 All architectures
The at(1) command was unable to parse some kinds of dates.
A source code patch exists which remedies this problem.
014: Y2K FIX: Jan 3, 2000
A minor problem; the sparc eeprom(8) command is not Y2K compliant.
A source code patch exists which remedies this problem. This is the second revision of the patch.
013: Y2K FIX: Jan 3, 2000 All architectures
A minor problem in the logging support for the adduser(8) command.
A source code patch exists which remedies this problem.
012: DRIVER IMPROVEMENT: Jan 3, 2000 All architectures
The 3C900B-TPO fails to select the correct media type (it never sees or sends packets).
A source code patch exists which remedies this problem.
011: SECURITY FIX: Dec 4, 1999 All architectures
Various bugs in poll(2) may cause a kernel crash.
A source code patch exists which remedies this problem.
010: SECURITY FIX: Dec 4, 1999 All architectures
Sendmail had a race in aliases file handling, which this patch fixes.
A source code patch exists which remedies this problem.
009: DRIVER IMPROVEMENTS: Dec 4, 1999 All architectures
Various improvements have been made to the IDE/ATAPI subsystem since the 2.6 release shipped.
Some of these improvements make some recalcitrant devices work much better.
Revision 1 of this jumbo source code patch exists.
007: RELIABILITY FIX: Nov 12, 1999 m68k architectures
All m68k kernels can possibly be crashed by a user.
A source code patch exists which remedies this problem.
006: RELIABILITY FIX: Nov 13, 1999 alpha only
The alpha kernel can possibly be crashed by a user.
A source code patch exists which remedies this problem.
005: FUNCTIONALITY ADDITION: Nov 11, 1999 All architectures
Various OpenSSH improvements have been made since the 2.6 release shipped.
To resolve the various (non-security related) features which users may want, we are making a jumbo patch available. This is now at VERSION FOUR.
Revision 4 of this jumbo source code patch exists.
NOTE: /etc/sshd_config and /etc/ssh_config may need changes.
004: RELIABILITY FIX: Nov 12, 1999 sparc only
The sparc kernel can be crashed by a user.
A source code patch exists which remedies this problem.
003: FUNCTIONALITY FIX: Nov 10, 1999 All architectures
m4 is quite broken in the 2.6 release.
A source code patch exists which remedies this problem. This is the 3rd revision of the patch.
002: SECURITY FIX: Nov 9, 1999 All architectures
Any user can change interface media configurations.
A source code patch exists which remedies this problem.
001: RELIABILITY FIX: Nov 8, 1999 All architectures
A race condition in newsyslog(8) can cause errors in log file rotation.
A source code patch exists which remedies this problem.