SUSE Security Update: Security update for unbound
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Announcement ID:    SUSE-SU-2020:1819-1
Rating:             important
References:         #1157268 #1171889 
Cross-References:   CVE-2019-18934 CVE-2020-12662 CVE-2020-12663
                   
Affected Products:
                    SUSE Linux Enterprise Server for SAP 15
                    SUSE Linux Enterprise Server 15-LTSS
                    SUSE Linux Enterprise High Performance Computing 15-LTSS
                    SUSE Linux Enterprise High Performance Computing 15-ESPOS
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   An update that fixes three vulnerabilities is now available.

Description:

   This update for unbound fixes the following issues:

   - CVE-2020-12662: Fixed an issue where unbound could have been tricked
     into amplifying an incoming query into a large number of queries
     directed to a target (bsc#1171889).
   - CVE-2020-12663: Fixed an issue where malformed answers from upstream
     name servers could have been used to make unbound unresponsive
     (bsc#1171889).
   - CVE-2019-18934: Fixed a vulnerability in the IPSec module which could
     have allowed code execution after receiving a special crafted answer
     (bsc#1157268).


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 Server for SAP 15:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2020-1819=1

   - SUSE Linux Enterprise Server 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-SLES-15-2020-1819=1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2020-1819=1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2020-1819=1



Package List:

   - SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):

      libunbound2-1.6.8-3.6.1
      libunbound2-debuginfo-1.6.8-3.6.1
      unbound-anchor-1.6.8-3.6.1
      unbound-anchor-debuginfo-1.6.8-3.6.1
      unbound-debuginfo-1.6.8-3.6.1
      unbound-debugsource-1.6.8-3.6.1
      unbound-devel-1.6.8-3.6.1

   - SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):

      libunbound2-1.6.8-3.6.1
      libunbound2-debuginfo-1.6.8-3.6.1
      unbound-anchor-1.6.8-3.6.1
      unbound-anchor-debuginfo-1.6.8-3.6.1
      unbound-debuginfo-1.6.8-3.6.1
      unbound-debugsource-1.6.8-3.6.1
      unbound-devel-1.6.8-3.6.1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64):

      libunbound2-1.6.8-3.6.1
      libunbound2-debuginfo-1.6.8-3.6.1
      unbound-anchor-1.6.8-3.6.1
      unbound-anchor-debuginfo-1.6.8-3.6.1
      unbound-debuginfo-1.6.8-3.6.1
      unbound-debugsource-1.6.8-3.6.1
      unbound-devel-1.6.8-3.6.1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64):

      libunbound2-1.6.8-3.6.1
      libunbound2-debuginfo-1.6.8-3.6.1
      unbound-anchor-1.6.8-3.6.1
      unbound-anchor-debuginfo-1.6.8-3.6.1
      unbound-debuginfo-1.6.8-3.6.1
      unbound-debugsource-1.6.8-3.6.1
      unbound-devel-1.6.8-3.6.1


References:

   https://www.suse.com/security/cve/CVE-2019-18934.html
   https://www.suse.com/security/cve/CVE-2020-12662.html
   https://www.suse.com/security/cve/CVE-2020-12663.html
   https://bugzilla.suse.com/1157268
   https://bugzilla.suse.com/1171889

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