CVE-2024-56171
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/828
- http://seclists.org/fulldisclosure/2025/Apr/10
- http://seclists.org/fulldisclosure/2025/Apr/11
- http://seclists.org/fulldisclosure/2025/Apr/12
- http://seclists.org/fulldisclosure/2025/Apr/13
- http://seclists.org/fulldisclosure/2025/Apr/4
- http://seclists.org/fulldisclosure/2025/Apr/5
- http://seclists.org/fulldisclosure/2025/Apr/8