CVE-2023-52556

OpenBSD 7.4 pf state race condition kernel crash

State: Published
Severity: 6.2 Medium
Published: Mar 1, 2024
Updated: Nov 14, 2024
Reserved: Mar 1, 2024

Description

In OpenBSD 7.4 before errata 009, a race condition between pf(4)'s processing of packets and expiration of packet states may cause a kernel panic.

Scores

CVSS	Score	Vector	Source
3.1	6.2 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

Affected Products

Product	Versions
OpenBSDOpenBSD	7.4 to before 7.4 errata 009Affected

References

https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig
https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7

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