CVE-2024-56171

Publication date 18 February 2025

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxml2	25.04 plucky	Fixed 2.12.7+dfsg+really2.9.14-0.2ubuntu4
	24.10 oracular	Fixed 2.12.7+dfsg-3ubuntu0.2
	24.04 LTS noble	Fixed 2.9.14+dfsg-1.3ubuntu3.2
	22.04 LTS jammy	Fixed 2.9.13+dfsg-1ubuntu0.6
	20.04 LTS focal	Fixed 2.9.10+dfsg-5ubuntu0.20.04.9
	18.04 LTS bionic	Fixed 2.9.4+dfsg1-6.1ubuntu1.9+esm2
	16.04 LTS xenial	Fixed 2.9.3+dfsg1-1ubuntu0.7+esm7
	14.04 LTS trusty	Fixed 2.9.1+dfsg1-3ubuntu4.13+esm7

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libxml2	Upstream: 5880a9a

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-7302-1
libxml2 vulnerabilities
25 February 2025