Bug 2372379 (CVE-2025-49795)

Summary:	CVE-2025-49795 libxml: Null pointer dereference leads to Denial of service (DoS)
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	csutherl, jclere, pjindal, plodge, szappis
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2372380, 2372383, 2372384, 2372381, 2372382
Bug Blocks:

Description OSIDB Bzimport 2025-06-12 00:33:46 UTC

A null pointer dereference vulnerability was discovered in the libxml2. The issue occurs in the xmlSchematronFormatReport function when processing incorrect XPath expressions in Schematron schema reports, leading to undefined behavior and potential crashes.

Comment 2 errata-xmlrpc 2025-07-08 21:09:51 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:10630 https://access.redhat.com/errata/RHSA-2025:10630

Comment 3 errata-xmlrpc 2025-10-27 17:46:29 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Core Services 2.4.62.SP2

Via RHSA-2025:19020 https://access.redhat.com/errata/RHSA-2025:19020