Integer Overflow or Wraparound Affecting libxml2-static package, versions <0:2.9.1-6.el7_9.10


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.25% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL7-LIBXML2STATIC-11336452
  • 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:7 libxml2-static to version 0:2.9.1-6.el7_9.10 or higher.
This issue was patched in RHSA-2025:12240.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-static package and not the libxml2-static package as distributed by RHEL. See How to fix? for RHEL:7 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