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Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package python3-libxml2  (opens in a new tab)

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EPSS
41.37% (99th percentile)

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  • Snyk IDSNYK-RHEL9-PYTHON3LIBXML2-11454129
  • published5 Aug 2025
  • disclosed14 Oct 2022
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Introduced: 14 Oct 2022

CVE-2022-40303  (opens in a new tab)
CWE-190  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

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 RHEL.

An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.

References