Stack-based Buffer Overflow Affecting libxml2-devel package, versions <0:2.12.5-7.el10_0


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.06% (19th percentile)

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  • Snyk IDSNYK-CENTOS10-LIBXML2DEVEL-10664466
  • published9 Jul 2025
  • disclosed12 Jun 2025

Introduced: 12 Jun 2025

CVE-2025-6021  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Centos:10 libxml2-devel to version 0:2.12.5-7.el10_0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-devel package and not the libxml2-devel package as distributed by Centos. See How to fix? for Centos:10 relevant fixed versions and status.

A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.

CVSS Base Scores

version 3.1