SUSE Security Update: Security update for libpng16
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:1398-2
Rating:             low
References:         #1100687 #1121624 #1124211 
Cross-References:   CVE-2018-13785 CVE-2019-7317
Affected Products:
                    SUSE Linux Enterprise Module for Open Buildservice
 Development Tools 15-SP1
                    SUSE Linux Enterprise Module for Basesystem 15-SP1
______________________________________________________________________________

   An update that solves two vulnerabilities and has one
   errata is now available.

Description:

   This update for libpng16 fixes the following issues:

   Security issues fixed:

   - CVE-2019-7317: Fixed a use-after-free vulnerability, triggered when
     png_image_free() was called under png_safe_execute (bsc#1124211).
   - CVE-2018-13785: Fixed a wrong calculation of row_factor in the
     png_check_chunk_length function in pngrutil.c, which could haved
     triggered and integer overflow and result in an divide-by-zero while
     processing a crafted PNG file, leading to a denial of service
     (bsc#1100687)


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 Module for Open Buildservice Development Tools
 15-SP1:

      zypper in -t patch
 SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-1398=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2019-1398=1



Package List:

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

      libpng16-debugsource-1.6.34-3.9.1
      libpng16-tools-1.6.34-3.9.1
      libpng16-tools-debuginfo-1.6.34-3.9.1

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

      libpng16-compat-devel-32bit-1.6.34-3.9.1
      libpng16-devel-32bit-1.6.34-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1 (aarch64 ppc64le s390x
 x86_64):

      libpng16-16-1.6.34-3.9.1
      libpng16-16-debuginfo-1.6.34-3.9.1
      libpng16-compat-devel-1.6.34-3.9.1
      libpng16-debugsource-1.6.34-3.9.1
      libpng16-devel-1.6.34-3.9.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1 (x86_64):

      libpng16-16-32bit-1.6.34-3.9.1
      libpng16-16-32bit-debuginfo-1.6.34-3.9.1


References:

   https://www.suse.com/security/cve/CVE-2018-13785.html
   https://www.suse.com/security/cve/CVE-2019-7317.html
   https://bugzilla.suse.com/1100687
   https://bugzilla.suse.com/1121624
   https://bugzilla.suse.com/1124211

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