Security update for libxml2

Announcement ID: SUSE-SU-2016:1204-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2016-3627 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2016-3627 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 12
  • SUSE Linux Enterprise Desktop 12 SP1
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • SUSE Linux Enterprise Software Development Kit 12
  • SUSE Linux Enterprise Software Development Kit 12 SP1

An update that solves one vulnerability and has one security fix can now be installed.

Description:

This update for libxml2 fixes two security issues:

  • libxml2 limits the number of recursions an XML document can contain so to protect against the "Billion Laughs" denial-of-service attack. Unfortunately, the underlying counter was not incremented properly in all necessary locations. Therefore, specially crafted XML documents could exhaust all available stack space and crash the XML parser without running into the recursion limit. This vulnerability has been fixed. (bsc#975947)

  • When running in recovery mode, certain invalid XML documents would trigger an infinite recursion in libxml2 that ran until all stack space was exhausted. This vulnerability could have been used to facilitate a denial-of-sevice attack. (CVE-2016-3627, bsc#972335)

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:

  • SUSE Linux Enterprise Desktop 12 SP1
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-709=1
  • SUSE Linux Enterprise Desktop 12
    zypper in -t patch SUSE-SLE-DESKTOP-12-2016-709=1
  • SUSE Linux Enterprise Software Development Kit 12
    zypper in -t patch SUSE-SLE-SDK-12-2016-709=1
  • SUSE Linux Enterprise Software Development Kit 12 SP1
    zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-709=1
  • SUSE Linux Enterprise Server 12
    zypper in -t patch SUSE-SLE-SERVER-12-2016-709=1
  • SUSE Linux Enterprise Server for SAP Applications 12
    zypper in -t patch SUSE-SLE-SERVER-12-2016-709=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-709=1
  • SUSE Linux Enterprise Server 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-709=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP1 (x86_64)
    • libxml2-2-32bit-2.9.1-20.1
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Desktop 12 (x86_64)
    • libxml2-2-32bit-2.9.1-20.1
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Software Development Kit 12 (ppc64le s390x x86_64)
    • libxml2-devel-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Software Development Kit 12 SP1 (ppc64le s390x x86_64)
    • libxml2-devel-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 (ppc64le s390x x86_64)
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 (noarch)
    • libxml2-doc-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 (s390x x86_64)
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-2-32bit-2.9.1-20.1
  • SUSE Linux Enterprise Server for SAP Applications 12 (x86_64)
    • libxml2-2-32bit-2.9.1-20.1
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Server for SAP Applications 12 (noarch)
    • libxml2-doc-2.9.1-20.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (ppc64le x86_64)
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (noarch)
    • libxml2-doc-2.9.1-20.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (x86_64)
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-2-32bit-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 SP1 (ppc64le s390x x86_64)
    • libxml2-2-debuginfo-2.9.1-20.1
    • libxml2-tools-2.9.1-20.1
    • libxml2-2-2.9.1-20.1
    • libxml2-tools-debuginfo-2.9.1-20.1
    • python-libxml2-2.9.1-20.1
    • python-libxml2-debuginfo-2.9.1-20.1
    • python-libxml2-debugsource-2.9.1-20.1
    • libxml2-debugsource-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 SP1 (noarch)
    • libxml2-doc-2.9.1-20.1
  • SUSE Linux Enterprise Server 12 SP1 (s390x x86_64)
    • libxml2-2-debuginfo-32bit-2.9.1-20.1
    • libxml2-2-32bit-2.9.1-20.1

References: