CVE-2023-52558

OpenBSD 7.4 and 7.3 m_split() network buffer kernel crash

State: Published
Severity: 7.5 High
Published: Mar 1, 2024
Updated: Nov 19, 2024
Reserved: Mar 1, 2024

Description

In OpenBSD 7.4 before errata 002 and OpenBSD 7.3 before errata 019, a network buffer that had to be split at certain length that could crash the kernel after receiving specially crafted escape sequences.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-131 Incorrect Calculation of Buffer Size

Affected Products

Product	Versions
OpenBSDOpenBSD	7.3 to before 7.3 errata 019Affected 7.4 to before 7.4 errata 002Affected

References

https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sig
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sig
https://github.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.