This is the OpenBSD 4.1 release errata & patch list:

The patches below are available in CVS via the OPENBSD_4_1 patch branch.

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

• 016: SECURITY FIX: April 3, 2008   All architectures
  Avoid possible hijacking of X11-forwarded connections with sshd(8) by refusing to listen on a port unless all address families bind successfully.
  A source code patch exists which remedies this problem.

• 015: SECURITY FIX: March 30, 2008   All architectures
  sshd(8) would execute ~/.ssh/rc even when a sshd_config(5) ForceCommand directive was in effect, allowing users with write access to this file to execute arbitrary commands. This behaviour was documented, but was an unsafe default and an extra hassle for administrators.
  A source code patch exists which remedies this problem.

• 014: SECURITY FIX: March 7, 2008   All architectures
  Buffer overflow in ppp command prompt parsing.
  A source code patch exists which remedies this problem.

• 013: RELIABILITY FIX: February 22, 2008   All architectures
  Incorrect assumptions in tcp_respond can lead to a kernel panic.
  A source code patch exists which remedies this problem.

• 012: SECURITY FIX: February 8, 2008   All architectures
  2nd revision, February 10, 2008
  Multiple vulnerabilities have been discovered in X.Org.
  XFree86 Misc extension out of bounds array index, File existence disclosure, Xinput extension memory corruption, TOG-cup extension memory corruption, MIT-SHM and EVI extensions integer overflows, PCF Font parser buffer overflow. CVE-2007-5760, CVE-2007-5958, CVE-2007-6427, CVE-2007-6428, CVE-2007-6429, CVE-2008-0006.
  A source code patch exists which remedies this problem.

• 011: SECURITY FIX: October 10, 2007   All architectures
  The SSL_get_shared_ciphers() function in OpenSSL contains an off-by-one overflow.
  A source code patch exists which remedies this problem.

• 010: SECURITY FIX: October 8, 2007   All architectures
  Malicious DHCP clients could cause dhcpd(8) to corrupt its stack
  A DHCP client that claimed to require a maximum message size less than the minimum IP MTU could cause dhcpd(8) to overwrite stack memory.
  A source code patch exists which remedies this problem.

• 009: SECURITY FIX: July 9, 2007   All Architectures
  Fix possible heap overflow in file(1), aka CVE-2007-1536.
  A source code patch exists which remedies this problem.

• 008: STABILITY FIX: May 9, 2007   All Architectures
  A malicious client can cause a division by zero.
  A source code patch exists which remedies this problem.

• 007: RELIABILITY FIX: April 30, 2007   All architectures
  Link state is not correctly tracked in ospfd and ripd.
  A source code patch exists which remedies this problem.

• 006: STABILITY FIX: April 27, 2007   PowerPC
  An unhandled AltiVec assist exception can cause a kernel panic.
  A source code patch exists which remedies this problem.

• 005: SECURITY FIX: April 27, 2007   All architectures
  IPv6 type 0 route headers can be used to mount a DoS attack against hosts and networks. This is a design flaw in IPv6 and not a bug in OpenBSD.
  A source code patch exists which remedies this problem.

• 004: SECURITY FIX: April 27, 2007   All architectures
  Multiple vulnerabilities have been discovered in X.Org.
  XC-MISC extension ProcXCMiscGetXIDList memory corruption vulnerability, BDFFont parsing integer overflow vulnerability, fonts.dir file parsing integer overflow vulnerability, multiple integer overflows in the XGetPixel() and XInitImage functions in ImUtil.c. CVE-2007-1003, CVE-2007-1351, CVE-2007-1352, CVE-2007-1667.
  A source code patch exists which remedies this problem.

• 003: RELIABILITY FIX: April 27, 2007   All architectures
  Bugs found in the spamd sychronization mechanism could cause corrupted databases.
  A source code patch exists which remedies this problem.

• 002: STABILITY FIX: April 27, 2007   All architectures
  Incorrect spl level can lead to panics under heavy kqueue usage.
  A source code patch exists which remedies this problem.

• 001: SECURITY FIX: April 27, 2007   All architectures
  Incorrect mbuf handling for ICMP6 packets.
  Using pf(4) to avoid the problem packets is an effective workaround until the patch can be installed.
  Use "block in inet6" in /etc/pf.conf
  A source code patch exists which remedies this problem.