Security update for libxml2

Announcement ID: SUSE-SU-2021:1654-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-3516 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-3516 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2021-3517 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
  • CVE-2021-3517 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
  • CVE-2021-3518 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-3518 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2021-3537 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-3537 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • Basesystem Module 15-SP2
  • Basesystem Module 15-SP3
  • Python 2 Module 15-SP2
  • Python 2 Module 15-SP3
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise Desktop 15 SP3
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP3
  • SUSE Linux Enterprise Micro 5.0
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Real Time 15 SP3
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server 15 SP3
  • SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP3
  • SUSE Manager Proxy 4.1
  • SUSE Manager Proxy 4.2
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Retail Branch Server 4.2
  • SUSE Manager Server 4.1
  • SUSE Manager Server 4.2

An update that solves four vulnerabilities can now be installed.

Description:

This update for libxml2 fixes the following issues:

  • CVE-2021-3537: NULL pointer dereference in valid.c:xmlValidBuildAContentModel (bsc#1185698)
  • CVE-2021-3518: Fixed a use after free in xinclude.c:xmlXIncludeDoProcess (bsc#1185408).
  • CVE-2021-3517: Fixed a heap based buffer overflow in entities.c:xmlEncodeEntitiesInternal (bsc#1185410).
  • CVE-2021-3516: Fixed a use after free in entities.c:xmlEncodeEntitiesInternal (bsc#1185409).

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • Basesystem Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-1654=1
  • Basesystem Module 15-SP3
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-1654=1
  • Python 2 Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Python2-15-SP2-2021-1654=1
  • Python 2 Module 15-SP3
    zypper in -t patch SUSE-SLE-Module-Python2-15-SP3-2021-1654=1
  • SUSE Linux Enterprise Micro 5.0
    zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-1654=1

Package List:

  • Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • libxml2-tools-2.9.7-3.34.1
    • libxml2-tools-debuginfo-2.9.7-3.34.1
    • python-libxml2-python-debugsource-2.9.7-3.34.1
    • libxml2-2-2.9.7-3.34.1
    • python3-libxml2-python-debuginfo-2.9.7-3.34.1
    • libxml2-debugsource-2.9.7-3.34.1
    • libxml2-devel-2.9.7-3.34.1
    • python3-libxml2-python-2.9.7-3.34.1
    • libxml2-2-debuginfo-2.9.7-3.34.1
  • Basesystem Module 15-SP2 (x86_64)
    • libxml2-2-32bit-2.9.7-3.34.1
    • libxml2-2-32bit-debuginfo-2.9.7-3.34.1
  • Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
    • libxml2-tools-2.9.7-3.34.1
    • libxml2-tools-debuginfo-2.9.7-3.34.1
    • python-libxml2-python-debugsource-2.9.7-3.34.1
    • libxml2-2-2.9.7-3.34.1
    • python3-libxml2-python-debuginfo-2.9.7-3.34.1
    • libxml2-debugsource-2.9.7-3.34.1
    • libxml2-devel-2.9.7-3.34.1
    • python3-libxml2-python-2.9.7-3.34.1
    • libxml2-2-debuginfo-2.9.7-3.34.1
  • Basesystem Module 15-SP3 (x86_64)
    • libxml2-2-32bit-2.9.7-3.34.1
    • libxml2-2-32bit-debuginfo-2.9.7-3.34.1
  • Python 2 Module 15-SP2 (aarch64 ppc64le s390x x86_64)
    • python2-libxml2-python-2.9.7-3.34.1
    • python2-libxml2-python-debuginfo-2.9.7-3.34.1
    • python-libxml2-python-debugsource-2.9.7-3.34.1
  • Python 2 Module 15-SP3 (aarch64 ppc64le s390x x86_64)
    • python2-libxml2-python-2.9.7-3.34.1
    • python2-libxml2-python-debuginfo-2.9.7-3.34.1
    • python-libxml2-python-debugsource-2.9.7-3.34.1
  • SUSE Linux Enterprise Micro 5.0 (aarch64 x86_64)
    • libxml2-tools-2.9.7-3.34.1
    • libxml2-tools-debuginfo-2.9.7-3.34.1
    • libxml2-2-2.9.7-3.34.1
    • libxml2-debugsource-2.9.7-3.34.1
    • libxml2-2-debuginfo-2.9.7-3.34.1

References: