Integer Overflow or Wraparound Affecting libxml2-devel package, versions <0:2.9.7-13.el8_6.10


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.18% (41st percentile)

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  • Snyk IDSNYK-RHEL8-LIBXML2DEVEL-11338143
  • published30 Jul 2025
  • disclosed12 Jun 2025

Introduced: 12 Jun 2025

CVE-2025-6021  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libxml2-devel to version 0:2.9.7-13.el8_6.10 or higher.
This issue was patched in RHSA-2025:12098.

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 RHEL. See How to fix? for RHEL:8 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