CVE-2023-52556

MEDIUM

OpenBSD < 7.4 - Denial of Service via pf(4) State Expiration Race Condition

Title source: llm
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 6.2
EPSS 0.0002
EPSS Percentile 5.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-367
Status published
Products (2)
openbsd/openbsd 7.4 (9 CPE variants)
openbsd/openbsd < 7.4
Published Mar 01, 2024
Tracked Since Feb 18, 2026