Xmlsoft libxslt up to 1.1.42 use after free

Summaryinfo

A vulnerability classified as critical was found in Xmlsoft libxslt up to 1.1.42. The affected element is an unknown function. The manipulation results in use after free. This vulnerability is reported as CVE-2024-55549. The attack requires a local approach. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Xmlsoft libxslt up to 1.1.42. Affected is an unknown function. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

xsltGetInheritedNsList in libxslt before 1.1.43 has a use-after-free issue related to exclusion of result prefixes.

The advisory is shared for download at gitlab.gnome.org. This vulnerability is traded as CVE-2024-55549 since 12/08/2024. The exploitability is told to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233281 (Debian dsa-5884 : libxslt1-dev - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.1.43 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (233281) and CERT Bund (WID-SEC-2025-2587). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• Open Source GitLab

Productinfo

Vendor

• Xmlsoft

Name

• libxslt

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23
• 1.1.24
• 1.1.25
• 1.1.26
• 1.1.27
• 1.1.28
• 1.1.29
• 1.1.30
• 1.1.31
• 1.1.32
• 1.1.33
• 1.1.34
• 1.1.35
• 1.1.36
• 1.1.37
• 1.1.38
• 1.1.39
• 1.1.40
• 1.1.41
• 1.1.42

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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