Input validation error in Libxml2 - CVE-2021-3541

Vulnerability identifier: #VU53289

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2021-3541

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Libxml2
HPE B-series SN6750B 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
HPE B-series SN6700B Fibre Channel Switch
Dell EMC VxRail Appliance
Amazon Linux AMI
Gentoo Linux
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Real Time 15
SUSE CaaS Platform
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Manager Server
SUSE MicroOS
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
SUSE Enterprise Storage
Anolis OS
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
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
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Server
Slackware Linux
Ubuntu
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Module for Python2
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
openSUSE Leap
openEuler
Fedora
Brocade Fabric OS
cflinuxfs3
APM Edge
EMC Cloud Tiering Appliance
jbcs-httpd24-openssl-pkcs11 (Red Hat package)
jbcs-httpd24-openssl-chil (Red Hat package)
jbcs-httpd24-apr-util (Red Hat package)
jbcs-httpd24-mod_http2 (Red Hat package)
jbcs-httpd24-nghttp2 (Red Hat package)
jbcs-httpd24-mod_md (Red Hat package)
jbcs-httpd24-httpd (Red Hat package)
jbcs-httpd24-mod_security (Red Hat package)
jbcs-httpd24-curl (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
libxml2
libxml2 (Ubuntu package)
libxml2-utils (Ubuntu package)
libxml2-debugsource
libxml2-devel
libxml2-2
libxml2-2-debuginfo
libxml2-tools
libxml2-tools-debuginfo
python-libxml2
python-libxml2-debuginfo
python-libxml2-debugsource
libxml2-2-32bit
libxml2-2-debuginfo-32bit
libxml2-doc
libxml2-2-32bit-debuginfo
python3-libxml2-python-debuginfo
python3-libxml2-python
python2-libxml2-python-debuginfo
python2-libxml2-python
python-libxml2-python-debugsource
libxml2 (Red Hat package)
python3-libxml2
libxml2-help
python2-libxml2
libxml2-debuginfo
qt5-qtwebengine
Service Telemetry Framework
Migration Toolkit for Containers
Cloud Pak for Security (CP4S)
Red Hat OpenShift Jaeger
JBoss Core Services
Splunk Enterprise
IBM Security Verify Access
Web Terminal
RSA Authentication Manager
OpenShift Virtualization
Splunk Universal Forwarder

Install updates from vendor's website.

Libxml2 - update to 2.9.12
cflinuxfs3 - update to 0.245.0
jbcs-httpd24-openssl-pkcs11 (Red Hat package) - addressed in versions 0.4.10-26.el8jbcs, 0.4.10-26.jbcs.el7
APM Edge - update to 4.0
jbcs-httpd24-openssl-chil (Red Hat package) - addressed in versions 1.0.0-11.el8jbcs, 1.0.0-11.jbcs.el7
Migration Toolkit for Containers - addressed in versions 1.4.6, 1.5.1
jbcs-httpd24-apr-util (Red Hat package) - addressed in versions 1.6.1-91.el8jbcs, 1.6.1-91.jbcs.el7
Cloud Pak for Security (CP4S) - update to 1.8.0.0
jbcs-httpd24-mod_http2 (Red Hat package) - addressed in versions 1.15.7-22.el8jbcs, 1.15.7-22.jbcs.el7
Red Hat OpenShift Jaeger - addressed in versions 1.20.5, 1.24.0
jbcs-httpd24-nghttp2 (Red Hat package) - addressed in versions 1.39.2-41.el8jbcs, 1.39.2-41.jbcs.el7
jbcs-httpd24-mod_md (Red Hat package) - addressed in versions 2.0.8-41.el8jbcs, 2.0.8-41.jbcs.el7
JBoss Core Services - update to 2.4.37 SP11
jbcs-httpd24-httpd (Red Hat package) - addressed in versions 2.4.37-80.el8jbcs, 2.4.37-80.jbcs.el7
jbcs-httpd24-mod_security (Red Hat package) - addressed in versions 2.9.2-68.GA.el8jbcs, 2.9.2-68.GA.jbcs.el7
jbcs-httpd24-curl (Red Hat package) - addressed in versions 7.78.0-3.el8jbcs, 7.78.0-3.jbcs.el7
Splunk Enterprise - addressed in versions 8.1.11, 8.2.7.1, 9.0.1
Web Terminal - update to 1.3
OpenShift Virtualization - addressed in versions 2.6.6, 4.8.0, 4.8.1
libxml2 - update to 2.9.1-6.6.42
libxml2 (Ubuntu package) - addressed in versions 2.9.4+dfsg1-6.1ubuntu1.4, 2.9.10+dfsg-6.3ubuntu0.1, 2.9.10+dfsg-5ubuntu0.20.04.1, 2.9.10+dfsg-5ubuntu0.20.10.2
libxml2-utils (Ubuntu package) - addressed in versions 2.9.4+dfsg1-6.1ubuntu1.4, 2.9.10+dfsg-6.3ubuntu0.1, 2.9.10+dfsg-5ubuntu0.20.04.1, 2.9.10+dfsg-5ubuntu0.20.10.2
libxml2-debugsource - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-devel - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-2 - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-2-debuginfo - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-tools - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-tools-debuginfo - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python-libxml2 - update to 2.9.4-46.46.1
python-libxml2-debuginfo - update to 2.9.4-46.46.1
python-libxml2-debugsource - update to 2.9.4-46.46.1
libxml2-2-32bit - addressed in versions 2.9.4-46.46.1, 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2-2-debuginfo-32bit - update to 2.9.4-46.46.1
libxml2-doc - update to 2.9.4-46.46.1
libxml2-2-32bit-debuginfo - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python3-libxml2-python-debuginfo - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python3-libxml2-python - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python2-libxml2-python-debuginfo - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python2-libxml2-python - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
python-libxml2-python-debugsource - addressed in versions 2.9.7-3.37.1, 2.9.7-150000.3.57.1
libxml2 (Red Hat package) - update to 2.9.7-9.el8_4.2
libxml2-devel - update to 2.9.7-9.0.1
libxml2 - update to 2.9.7-9.0.1
python3-libxml2 - update to 2.9.7-9.0.1
libxml2-help - update to 2.9.10-16
python2-libxml2 - update to 2.9.10-16
libxml2-devel - update to 2.9.10-16
libxml2-debuginfo - update to 2.9.10-16
libxml2-debugsource - update to 2.9.10-16
libxml2 - update to 2.9.10-16
python3-libxml2 - update to 2.9.10-16
libxml2 - addressed in versions 2.9.12-2.fc34, 2.9.12-4.fc33
qt5-qtwebengine - addressed in versions 5.15.8-2.fc34, 5.15.8-2.fc35
Dell EMC VxRail Appliance - update to 7.0.203
Splunk Universal Forwarder - addressed in versions 8.1.11, 8.2.7.1, 9.0.1
RSA Authentication Manager - addressed in versions 8.7 SP1 Patch 3, 8.7 SP2 Patch 1
Brocade Fabric OS - addressed in versions 9.1.1d2, 9.2.0b1, 9.2.1
EMC Cloud Tiering Appliance - update to 13.2.0.2.24

• https://github.com/GNOME/libxml2/commit/8598060bacada41a0eb09d95c97744ff4e428f8e

• Denial of service in Libxml2
• Slackware Linux update for libxml2
• Multiple vulnerabilities in cflinuxfs3
• Red Hat Enterprise Linux 8.4 update for libxml2
• Gentoo update for libxml2
• Multiple vulnerabilities in Red Hat OpenShift Jaeger
• Multiple vulnerabilities in Red Hat Migration Toolkit for Containers
• Multiple vulnerabilities in Red Hat OpenShift Jaeger
• Multiple vulnerabilities in Red Hat Migration Toolkit for Containers
• Multiple vulnerabilities in Red Hat Web Terminal
• Multiple vulnerabilities in Hitachi Energy APM Edge
• Multiple vulnerabilities in IBM Security Verify Access
• Multiple vulnerabilities in Red Hat JBoss Core Services
• SUSE update for libxml2
• SUSE update for libxml2
• Ubuntu update for libxml2
• Multiple vulnerabilities in Red Hat Service Telemetry Framework
• Multiple vulnerabilities in IBM Cloud Pak for Security
• Multiple vulnerabilities in Splunk Enterprise
• Multiple vulnerabilities in Splunk Universal Forwarder
• Multiple vulnerabilities in Dell EMC VxRail Appliance
• SUSE update for libxml2
• Amazon Linux AMI update for libxml2
• Multiple vulnerabilities in Dell Cloud Tiering Appliance
• openEuler 20.03 LTS SP1 update for libxml2
• Multiple vulnerabilities in HPE Brocade Fabric OS
• Multiple vulnerabilities in OpenShift Virtualization 4.8
• Multiple vulnerabilities in OpenShift Virtualization 2.6
• Multiple vulnerabilities in OpenShift Virtualization 4.8
• Fedora 34 update for libxml2
• Fedora 33 update for libxml2
• Fedora 35 update for qt5-qtwebengine
• Fedora 34 update for qt5-qtwebengine
• Anolis OS update for libxml2
• RSA Authentication Manager update for third-party components