CVE-2024-56171 Affecting libxml2 package, versions <2.9.3+dfsg1-1ubuntu0.7+esm7


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-UBUNTU1604-LIBXML2-8738150
  • published21 Feb 2025
  • disclosed18 Feb 2025

Introduced: 18 Feb 2025

CVE-2024-56171  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 libxml2 to version 2.9.3+dfsg1-1ubuntu0.7+esm7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.

CVSS Base Scores

version 3.1