CVE-2023-52558
HIGH EPSS 48.6%
Published Mar 1, 20242y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
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
Exploitability
Impact
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
| Vendor | Product | Version | Range |
|---|---|---|---|
| openbsd | openbsd | * | <7.3 |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.3 | any |
| openbsd | openbsd | 7.4 | any |
| openbsd | openbsd | 7.4 | any |
References 3
- ftp.openbsd.org https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sig
- ftp.openbsd.org https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sig
- github.com https://github.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89
Remediation
- ftp.openbsd.org https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sig
- ftp.openbsd.org https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sig
- github.com https://github.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89