CVE-2025-24855

Publication date 14 March 2025

Last updated 1 October 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

Description

numbers.c in libxslt before 1.1.43 has a use-after-free because, in nested XPath evaluations, an XPath context node can be modified but never restored. This is related to xsltNumberFormatGetValue, xsltEvalXPathPredicate, xsltEvalXPathStringNs, and xsltComputeSortResultInternal.

Status

Package Ubuntu Release Status
libxslt 25.04 plucky
Fixed 1.1.39-0exp1ubuntu4
24.10 oracular
Fixed 1.1.39-0exp1ubuntu1.2
24.04 LTS noble
Fixed 1.1.39-0exp1ubuntu0.24.04.2
22.04 LTS jammy
Fixed 1.1.34-4ubuntu0.22.04.3
20.04 LTS focal
Fixed 1.1.34-4ubuntu0.20.04.3
18.04 LTS bionic
Fixed 1.1.29-5ubuntu0.3+esm2
16.04 LTS xenial
Fixed 1.1.28-2.1ubuntu0.3+esm3
14.04 LTS trusty
Fixed 1.1.28-2ubuntu0.2+esm4

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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
libxslt

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 None
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-7787-1
    • Libxslt vulnerabilities
    • 30 September 2025

Other references