For errata on a certain release, click below:
2.0,
2.1,
2.2,
2.3,
2.4,
2.5,
2.6,
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,
5.6,
5.7,
5.8,
5.9,
6.0,
6.1,
6.2,
6.3,
6.4,
6.5,
6.6,
6.7,
6.8,
6.9.
Patches for the OpenBSD base system are distributed as unified diffs.
Each patch is cryptographically signed with the
signify(1) tool and contains
usage instructions.
All the following patches are also available in one
tar.gz file
for convenience.
Alternatively, the syspatch(8)
utility can be used to apply binary updates on the following architectures:
amd64, i386, arm64.
Patches for supported releases are also incorporated into the
-stable branch, which is maintained for one year
after release.
-
001: RELIABILITY FIX: October 31, 2021
All architectures
In certain configurations, nsd(8) can be crashed by a remote attacker.
A source code patch exists which remedies this problem.
-
002: RELIABILITY FIX: October 31, 2021
All architectures
Opening /dev/bpf too often could lead to resource exhaustion.
A source code patch exists which remedies this problem.
-
003: SECURITY FIX: October 31, 2021
All architectures
The kernel could leak memory when closing unix sockets.
A source code patch exists which remedies this problem.
-
004: SECURITY FIX: November 9, 2021
All architectures
rpki-client(8) should handle CA misbehaviours as soft-errors.
A source code patch exists which remedies this problem.
-
005: RELIABILITY FIX: November 26, 2021
All architectures
An unprivileged user could crash the kernel by using UNIX-domain
sockets in multiple threads.
A source code patch exists which remedies this problem.
-
006: SECURITY FIX: November 26, 2021
All architectures
In some situations the X.509 verifier would discard an error on
an unverified certificate chain, resulting in an authentication bypass.
A source code patch exists which remedies this problem.
-
007: SECURITY FIX: December 14, 2021
All architectures
Multiple input validation failures in the X server request parsing
code can lead to out of bounds memory accesses for authorized
clients.
A source code patch exists which remedies this problem.
-
008: SECURITY FIX: December 16, 2021
All architectures
If multicast routing is used, kernel memory is leaked to userland.
A source code patch exists which remedies this problem.