Integer Overflow or Wraparound Affecting python3-libxml2 package, versions <0:2.9.7-21.el8_10.1


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3LIBXML2-10344434
  • published12 Jun 2025
  • disclosed12 Jun 2025

Introduced: 12 Jun 2025

NewCVE-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 Centos:8 python3-libxml2 to version 0:2.9.7-21.el8_10.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-libxml2 package and not the python3-libxml2 package as distributed by Centos. See How to fix? for Centos: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