SUSE Security Update: Security update for LibVNCServer
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Announcement ID:    SUSE-SU-2020:1164-1
Rating:             important
References:         #1155419 #1160471 #1170441 
Cross-References:   CVE-2019-15681 CVE-2019-15690 CVE-2019-20788
                   
Affected Products:
                    SUSE Linux Enterprise Workstation Extension 15-SP2
                    SUSE Linux Enterprise Workstation Extension 15-SP1
                    SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2
                    SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP2
                    SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for LibVNCServer fixes the following issues:

   - CVE-2019-15690: Fixed a heap buffer overflow (bsc#1160471).
   - CVE-2019-15681: Fixed a memory leak which could have allowed to a remote
     attacker to read stack memory (bsc#1155419).
   - CVE-2019-20788: Fixed a integer overflow and heap-based buffer overflow
     via a large height or width value (bsc#1170441).


Patch Instructions:

   To install this SUSE Security 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 Workstation Extension 15-SP2:

      zypper in -t patch SUSE-SLE-Product-WE-15-SP2-2020-1164=1

   - SUSE Linux Enterprise Workstation Extension 15-SP1:

      zypper in -t patch SUSE-SLE-Product-WE-15-SP1-2020-1164=1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2020-1164=1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP2-2020-1164=1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1164=1



Package List:

   - SUSE Linux Enterprise Workstation Extension 15-SP2 (x86_64):

      LibVNCServer-debugsource-0.9.10-4.14.1
      libvncclient0-0.9.10-4.14.1
      libvncclient0-debuginfo-0.9.10-4.14.1
      libvncserver0-0.9.10-4.14.1
      libvncserver0-debuginfo-0.9.10-4.14.1

   - SUSE Linux Enterprise Workstation Extension 15-SP1 (x86_64):

      LibVNCServer-debugsource-0.9.10-4.14.1
      libvncclient0-0.9.10-4.14.1
      libvncclient0-debuginfo-0.9.10-4.14.1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2 (aarch64 ppc64le s390x x86_64):

      LibVNCServer-debugsource-0.9.10-4.14.1
      libvncserver0-0.9.10-4.14.1
      libvncserver0-debuginfo-0.9.10-4.14.1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP2 (aarch64 ppc64le s390x x86_64):

      LibVNCServer-debugsource-0.9.10-4.14.1
      LibVNCServer-devel-0.9.10-4.14.1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15-SP1 (aarch64 ppc64le s390x x86_64):

      LibVNCServer-debugsource-0.9.10-4.14.1
      LibVNCServer-devel-0.9.10-4.14.1
      libvncserver0-0.9.10-4.14.1
      libvncserver0-debuginfo-0.9.10-4.14.1


References:

   https://www.suse.com/security/cve/CVE-2019-15681.html
   https://www.suse.com/security/cve/CVE-2019-15690.html
   https://www.suse.com/security/cve/CVE-2019-20788.html
   https://bugzilla.suse.com/1155419
   https://bugzilla.suse.com/1160471
   https://bugzilla.suse.com/1170441

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