CVE-2023-52556

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52556
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.

6.2 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1 (hide)

OR cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:-:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_001:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_002:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_003:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_004:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_005:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_006:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_007:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_008:*:*:*:*:*:*
History

10 Oct 2025, 17:44

Type Values Removed Values Added
References () https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig - () https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig - Patch
References () https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7 - () https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7 - Patch
First Time Openbsd
Openbsd openbsd
CPE cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_007:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:-:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_002:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_001:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_008:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_005:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_006:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_004:*:*:*:*:*:*
cpe:2.3:o:openbsd:openbsd:7.4:errata_003:*:*:*:*:*:*

21 Nov 2024, 08:40

Type Values Removed Values Added
References () https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig - () https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/009_pf.patch.sig -
References () https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7 - () https://github.com/openbsd/src/commit/9d9f4dc6c833cb79d13f836581e3a781d06842e7 -

14 Nov 2024, 20:35

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.2
Summary
  • (es) En OpenBSD 7.4 antes de la errata 009, una condición de ejecución entre el procesamiento de paquetes de pf(4) y la expiración de los estados de los paquetes puede causar un pánico en el kernel.

01 Mar 2024, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-01 17:15

Updated : 2025-10-10 17:44

NVD link : CVE-2023-52556

Mitre link : CVE-2023-52556

CVE.ORG link : CVE-2023-52556

JSON object : View

Products Affected

openbsd

  • openbsd
CWE
CWE-367

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