CVE-2023-52558

HIGH EPSS 48.6%
Published Mar 1, 20242y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 1, 2024 2y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
48.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-131

Affected Products 22

VendorProductVersionRange
openbsdopenbsd* <7.3
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.3any
openbsdopenbsd7.4any
openbsdopenbsd7.4any

References 3

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

Remediation

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