NULL pointer dereference in Libxml2 - CVE-2023-28484

Vulnerability identifier: #VU74863

CSH Severity: Medium

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

CVE-ID: CVE-2023-28484

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Libxml2
Gentoo Linux
Debian Linux
Amazon Linux AMI
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Software Development Kit 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
openSUSE Leap Micro
SUSE Enterprise Storage
Red Hat Enterprise Linux for ARM 64
Anolis OS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Oracle Solaris
Slackware Linux
Ubuntu
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Basesystem Module
openSUSE Leap
openEuler
Fedora
Brocade Fabric OS
HPE B-series SN6750B Fibre Channel Switch
HPE B-series SN6700B Fibre Channel Switch
HPE B-series SN6650B Fibre Channel Switch
HPE B-series SN6600B Fibre Channel Switch
HPE B-series SN4700B SAN Extension Switch
HPE B-series SN3600B Fibre Channel Switch
HPE B-series SN2600B SAN Extension Switch
HPE SN8600B 8-slot SAN Director Switch
HPE SN8600B 4-slot SAN Director Switch
HPE SN8700B 8-slot SAN Director Switch
HPE SN8700B 4-slot SAN Director Switch
Brocade 32Gb Fibre Channel SAN Switch for HPE Synergy
Dell Data Protection Central
Dell EMC PowerProtect Data Protection
webMethods Managed File Transfer
cflinuxfs3
ObjectScale
IBM Cloud Pak for Watson AIOps
Platform Automation Toolkit
IBM supplied MQ Advanced container images
Security Verify Governance - Identity Manager virtual appliance
EMC Cloud Tiering Appliance
Dell PowerProtect Cyber Recovery
Robotic Process Automation for Cloud Pak
Service Interconnect
Isolation Segment
VMware Tanzu Application Service for VMs
Run Once Duration Override Operator for Red Hat OpenShift
Data Lakehouse
Red Hat OpenShift Kernel Module Management
Service Telemetry Framework
OpenShift Pipelines
Migration Toolkit for Virtualization
Red Hat Advanced Cluster Management for Kubernetes
Red Hat Advanced Cluster Security for Kubernetes
IBM Watson Speech Services Cartridge for IBM Cloud Pak for Data
Red Hat Migration Toolkit for Applications
Tenable Nessus
Oracle HTTP Server
Red Hat OpenStack
IBM Cloud Pak for Business Automation
Oracle Communications Cloud Native Core Binding Support Function
Oracle Communications Cloud Native Core Network Repository Function
DevWorkspace Operator
Netcool Operations Insight
IBM MQ Operator
IBM Cloud Transformation Advisor
IBM Power Hardware Management Console (HMC)
NetWorker
Node Health Check Operator
Self Node Remediation Operator
Red Hat OpenShift Serverless
Multicluster Engine for Kubernetes
OpenShift Service Mesh
OpenShift Virtualization
Node Maintenance Operator
VMware Tanzu Operations Manager
Secondary Scheduler Operator for Red Hat OpenShift (OSSO)
OpenShift API for Data Protection (OADP)
Network Observability plugin for the Openshift Console
Nokogiri
Migration Toolkit for Containers
Red Hat OpenShift Container Platform
Red Hat OpenShift GitOps
AMQ Broker
MySQL Workbench
IBM CICS TX Advanced
MySQL Cluster
RSA Authentication Manager
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
libxml2 (Ubuntu package)
libxml2-utils (Ubuntu package)
libxml2
libxml2-2-debuginfo-32bit
libxml2-2-32bit
libxml2-doc
python-libxml2-debugsource
libxml2-2
libxml2-tools
libxml2-tools-debuginfo
python-libxml2-debuginfo
libxml2-2-debuginfo
python-libxml2
libxml2-devel
libxml2-debugsource
libxml2 (Red Hat package)
python3-libxml2
python2-libxml2-python
libxml2-2-32bit-debuginfo
python3-libxml2-python
python-libxml2-python-debugsource
python3-libxml2-python-debuginfo
python2-libxml2-python-debuginfo
libxml2 (Debian package)
libxml2-help
libxml2-debuginfo
python2-libxml2
libxml2-devel-32bit
libxml2-python-debugsource
python3-libxml2-debuginfo
dev-libs/libxml2
Oracle Communications Cloud Native Core Policy
Oracle Communications Cloud Native Core Network Function Cloud Native Environment
TeleControl Server Basic
RecoverPoint for VMs
Operational Decision Manager
Dell EMC NetWorker vProxy

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

The vulnerability exists due to a NULL pointer dereference error in xmlSchemaFixupComplexType. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.10.4
• https://gitlab.gnome.org/GNOME/libxml2/-/commit/647e072ea0a2f12687fa05c172f4c4713fdb0c4f