SUSE Security Update: Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2)
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Announcement ID:    SUSE-SU-2022:0996-1
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-SP2
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Server 15-SP2
                    SUSE Linux Enterprise Server for SAP Applications 15-SP2
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   An update that fixes one vulnerability is now available.

Description:

   This update for the Linux Kernel 5.3.18-24_107 fixes one issue.

   The following security issue was fixed:

   - CVE-2021-0920: Fixed a local privilege escalation due to a
     use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731).


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-SP2:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-996=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP2 (ppc64le s390x x86_64):

      kernel-livepatch-5_3_18-24_107-default-2-150200.2.1
      kernel-livepatch-5_3_18-24_107-default-debuginfo-2-150200.2.1
      kernel-livepatch-SLE15-SP2_Update_25-debugsource-2-150200.2.1


References:

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