CVE-2022-48437

MEDIUM

LibreSSL < 3.6.1 and OpenBSD < 7.2 - Improper Certificate Validation in x509_verify_ctx_add_chain

Title source: llm

Description

An issue was discovered in x509/x509_verify.c in LibreSSL before 3.6.1, and in OpenBSD before 7.2 errata 001. x509_verify_ctx_add_chain does not store errors that occur during leaf certificate verification, and therefore an incorrect error is returned. This behavior occurs when there is an installed verification callback that instructs the verifier to continue upon detecting an invalid certificate.

References (3)

Core 3

Core References

Patch

https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.1-relnotes.txt

Patch

https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/001_x509.patch.sig

Patch

https://github.com/openbsd/src/commit/4f94258c65a918ee3d8670e93916d15bf879e6ec

View Patch ZIP pw:eip

Scores

CVSS v3 5.3

EPSS 0.0028

EPSS Percentile 51.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-295

Status published

Products (2)

openbsd/libressl < 3.6.1

openbsd/openbsd < 7.2

Published Apr 12, 2023

Tracked Since Feb 18, 2026