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CVE-2023-52558

Good to know:

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Date: March 1, 2024

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.

Language: C

Severity Score

Related Resources (5)

https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/019_msplit.patch.sig
https://github.com/openbsd/src/commit/7b4d35e0a60ba1dd4daf4b1c2932020a22463a89
https://ftp.openbsd.org/pub/OpenBSD/patches/7.4/common/002_msplit.patch.sig
https://nvd.nist.gov/vuln/detail/CVE-2023-52558
https://www.mend.io/vulnerability-database/CVE-2023-52558

Severity Score

Weakness Type (CWE)

Incorrect Calculation of Buffer Size

CWE-131

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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