REDHAT-BUG-2346416: Use After Free
First published: Tue Feb 18 2025(Updated: )
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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libxml2 | <2.12.10>2.13.0<=2.13.6 |
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Reference Links
- https://access.redhat.com/errata/RHSA-2025:2482
- https://access.redhat.com/errata/RHSA-2025:2483
- https://access.redhat.com/errata/RHSA-2025:2507
- https://access.redhat.com/errata/RHSA-2025:2513
- https://access.redhat.com/errata/RHSA-2025:2654
- https://access.redhat.com/errata/RHSA-2025:2660
- https://access.redhat.com/errata/RHSA-2025:2673
- https://access.redhat.com/errata/RHSA-2025:2678
- https://access.redhat.com/errata/RHSA-2025:2679
- https://access.redhat.com/errata/RHSA-2025:2686
- https://access.redhat.com/errata/RHSA-2025:2701
- https://access.redhat.com/errata/RHSA-2025:3066
- https://access.redhat.com/errata/RHSA-2025:3055
- https://access.redhat.com/errata/RHSA-2025:3059
- https://access.redhat.com/errata/RHSA-2025:3453
- https://access.redhat.com/errata/RHSA-2025:3301
- https://access.redhat.com/errata/RHSA-2025:3569
- https://access.redhat.com/errata/RHSA-2025:3573
- https://bugzilla.redhat.com/show_bug.cgi?id=2346416
Frequently Asked Questions
What is the severity of REDHAT-BUG-2346416?
REDHAT-BUG-2346416 is classified as a high severity vulnerability due to a use-after-free flaw in libxml2.
How do I fix REDHAT-BUG-2346416?
To mitigate REDHAT-BUG-2346416, upgrade libxml2 to versions 2.12.10 or 2.13.6 or later.
What are the symptoms of exploitation of REDHAT-BUG-2346416?
Exploitation of REDHAT-BUG-2346416 may lead to crashes or unexpected behavior when processing crafted XML documents.
Which versions of libxml2 are affected by REDHAT-BUG-2346416?
Versions of libxml2 before 2.12.10 and 2.13.x prior to 2.13.6 are affected by REDHAT-BUG-2346416.
What components are involved in the vulnerability REDHAT-BUG-2346416?
The components involved in REDHAT-BUG-2346416 are xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in xmlschemas.c.
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