NULL pointer dereference in Libxml2 - CVE-2025-27113

Vulnerability identifier: #VU104213

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2025-27113

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Libxml2
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
Debian Linux
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
visionOS
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
watchOS
macOS
Ubuntu
Python 3 Module
Basesystem Module
openSUSE Leap
tvOS
iPadOS
Apple iOS
openEuler
Anolis OS
Rapid Infrastructure Automation
DataStage on Cloud Pak for Data
APEX Cloud Platform for Microsoft Azure
Storage Resource Manager
SmartFabric OS10
Traffix SDC
Oracle Java SE
IBM CICS TX Advanced
NetWorker
Oracle Communications Cloud Native Core Network Repository Function
APEX Cloud Platform for Red Hat OpenShift
PowerProtect Data Manager
libxml2 (Ubuntu package)
libxml2-2-debuginfo-32bit
libxml2-2-debuginfo
libxml2-2
libxml2-tools-debuginfo
python-libxml2
python-libxml2-debuginfo
python-libxml2-debugsource
libxml2-tools
libxml2-devel
libxml2-debugsource
libxml2-2-32bit
libxml2-doc
python-libxml2-python-debugsource
python3-libxml2-python
python3-libxml2-python-debuginfo
libxml2-2-32bit-debuginfo
libxml2 (Debian package)
libxml2-help
python3-libxml2
libxml2-debuginfo
libxml2
libxml2-devel-64bit
libxml2-2-64bit
python311-libxml2-debuginfo
libxml2-2-64bit-debuginfo
libxml2-devel-32bit
python311-libxml2
python3-libxml2-debuginfo
libxml2-python-debugsource
libxml2-static
SmartFabric Manager
Dell EMC Storage Monitoring and Reporting (SMR)
PowerScale OneFS

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the xmlPatMatch() function in pattern.c. A remote attacker can pass specially crafted XML document to the affected application and perform a denial of service (DoS) attack.

Install update from vendor's website.

• https://gitlab.gnome.org/GNOME/libxml2/-/issues/861