Integer Overflow or Wraparound Affecting python3-libxml2 package, versions <0:2.9.7-15.el8_7.1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.5% (78th percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3LIBXML2-3057685
  • published20 Oct 2022
  • disclosed14 Oct 2022

Introduced: 14 Oct 2022

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

How to fix?

Upgrade RHEL:8 python3-libxml2 to version 0:2.9.7-15.el8_7.1 or higher.
This issue was patched in RHSA-2023:0173.

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. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1