SUSE-SU-2021:2760-1: important: Security update for c-ares

sle-security-updates at lists.suse.com sle-security-updates at lists.suse.com
Tue Aug 17 19:34:59 UTC 2021


   SUSE Security Update: Security update for c-ares
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2760-1
Rating:             important
References:         #1188881 
Cross-References:   CVE-2021-3672
CVSS scores:
                    CVE-2021-3672 (SUSE): 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected Products:
                    SUSE Manager Server 4.0
                    SUSE Manager Retail Branch Server 4.0
                    SUSE Manager Proxy 4.0
                    SUSE Linux Enterprise Server for SAP 15-SP1
                    SUSE Linux Enterprise Server for SAP 15
                    SUSE Linux Enterprise Server 15-SP1-LTSS
                    SUSE Linux Enterprise Server 15-SP1-BCL
                    SUSE Linux Enterprise Server 15-LTSS
                    SUSE Linux Enterprise Module for Basesystem 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
                    SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS
                    SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS
                    SUSE Linux Enterprise High Performance Computing 15-LTSS
                    SUSE Linux Enterprise High Performance Computing 15-ESPOS
                    SUSE Enterprise Storage 6
                    SUSE CaaS Platform 4.0
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

Description:

   This update for c-ares fixes the following issues:

   Version update to git snapshot 1.17.1+20200724:

   - CVE-2021-3672: fixed missing input validation on hostnames returned by
     DNS servers (bsc#1188881)
   - If ares_getaddrinfo() was terminated by an ares_destroy(), it would
     cause crash
   - Crash in sortaddrinfo() if the list size equals 0 due to an unexpected
     DNS response
   - Expand number of escaped characters in DNS replies as per RFC1035 5.1 to
     prevent spoofing
   - Use unbuffered /dev/urandom for random data to prevent early startup
     performance issues


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 Manager Server 4.0:

      zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-2760=1

   - SUSE Manager Retail Branch Server 4.0:

      zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-2760=1

   - SUSE Manager Proxy 4.0:

      zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-2760=1

   - SUSE Linux Enterprise Server for SAP 15-SP1:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2021-2760=1

   - SUSE Linux Enterprise Server for SAP 15:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-2760=1

   - SUSE Linux Enterprise Server 15-SP1-LTSS:

      zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2021-2760=1

   - SUSE Linux Enterprise Server 15-SP1-BCL:

      zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-BCL-2021-2760=1

   - SUSE Linux Enterprise Server 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-SLES-15-2021-2760=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2760=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-2760=1

   - SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-LTSS-2021-2760=1

   - SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-SP1-ESPOS-2021-2760=1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2021-2760=1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2021-2760=1

   - SUSE Enterprise Storage 6:

      zypper in -t patch SUSE-Storage-6-2021-2760=1

   - SUSE CaaS Platform 4.0:

      To install this update, use the SUSE CaaS Platform 'skuba' tool. It
      will inform you if it detects new updates and let you then trigger
      updating of the complete cluster in a controlled way.



Package List:

   - SUSE Manager Server 4.0 (ppc64le s390x x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Manager Retail Branch Server 4.0 (x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Manager Proxy 4.0 (x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise Server for SAP 15-SP1 (ppc64le x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

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

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise Server 15-SP1-LTSS (aarch64 ppc64le s390x x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise Server 15-SP1-BCL (x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

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

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

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

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS (aarch64 x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS (aarch64 x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

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

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

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

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE Enterprise Storage 6 (aarch64 x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1

   - SUSE CaaS Platform 4.0 (x86_64):

      c-ares-debugsource-1.17.1+20200724-3.14.1
      c-ares-devel-1.17.1+20200724-3.14.1
      libcares2-1.17.1+20200724-3.14.1
      libcares2-debuginfo-1.17.1+20200724-3.14.1


References:

   https://www.suse.com/security/cve/CVE-2021-3672.html
   https://bugzilla.suse.com/1188881



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