SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP5)
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Announcement ID:    SUSE-SU-2022:0647-1
Rating:             important
References:         #1194463 
Cross-References:   CVE-2021-0920
CVSS scores:
                    CVE-2021-0920 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-0920 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise High Performance Computing 15-SP1
                    SUSE Linux Enterprise Live Patching 12-SP4
                    SUSE Linux Enterprise Live Patching 12-SP5
                    SUSE Linux Enterprise Module for Live Patching 15-SP1
                    SUSE Linux Enterprise Server 15-SP1
                    SUSE Linux Enterprise Server for SAP Applications 15-SP1
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   An update that fixes one vulnerability is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_103 fixes one issue.

   The following security issue was fixed:

   - CVE-2021-0920: Fixed a local privilege escalation due to an use after
     free bug in unix_gc (bsc#1194463).


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 Live Patching 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2022-629=1 SUSE-SLE-Module-Live-Patching-15-SP1-2022-630=1 SUSE-SLE-Module-Live-Patching-15-SP1-2022-631=1 SUSE-SLE-Module-Live-Patching-15-SP1-2022-632=1 SUSE-SLE-Module-Live-Patching-15-SP1-2022-633=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2022-634=1 SUSE-SLE-Live-Patching-12-SP5-2022-635=1 SUSE-SLE-Live-Patching-12-SP5-2022-636=1 SUSE-SLE-Live-Patching-12-SP5-2022-637=1 SUSE-SLE-Live-Patching-12-SP5-2022-638=1 SUSE-SLE-Live-Patching-12-SP5-2022-639=1 SUSE-SLE-Live-Patching-12-SP5-2022-640=1 SUSE-SLE-Live-Patching-12-SP5-2022-641=1 SUSE-SLE-Live-Patching-12-SP5-2022-642=1 SUSE-SLE-Live-Patching-12-SP5-2022-643=1 SUSE-SLE-Live-Patching-12-SP5-2022-644=1

   - SUSE Linux Enterprise Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-645=1 SUSE-SLE-Live-Patching-12-SP4-2022-646=1 SUSE-SLE-Live-Patching-12-SP4-2022-647=1 SUSE-SLE-Live-Patching-12-SP4-2022-648=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):

      kernel-livepatch-4_12_14-197_102-default-4-2.1
      kernel-livepatch-4_12_14-197_86-default-15-2.2
      kernel-livepatch-4_12_14-197_89-default-12-2.1
      kernel-livepatch-4_12_14-197_92-default-11-2.1
      kernel-livepatch-4_12_14-197_99-default-9-2.1

   - SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-122_103-default-4-2.1
      kgraft-patch-4_12_14-122_63-default-15-2.2
      kgraft-patch-4_12_14-122_66-default-13-2.1
      kgraft-patch-4_12_14-122_71-default-12-2.1
      kgraft-patch-4_12_14-122_74-default-10-2.1
      kgraft-patch-4_12_14-122_77-default-10-2.1
      kgraft-patch-4_12_14-122_80-default-9-2.1
      kgraft-patch-4_12_14-122_83-default-8-2.1
      kgraft-patch-4_12_14-122_88-default-6-2.1
      kgraft-patch-4_12_14-122_91-default-6-2.1
      kgraft-patch-4_12_14-122_98-default-4-2.1

   - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-95_71-default-15-2.2
      kgraft-patch-4_12_14-95_74-default-12-2.1
      kgraft-patch-4_12_14-95_80-default-9-2.1
      kgraft-patch-4_12_14-95_83-default-4-2.1


References:

   https://www.suse.com/security/cve/CVE-2021-0920.html
   https://bugzilla.suse.com/1194463