SUSE-SU-2021:2366-1: important: Security update for the Linux Kernel (Live Patch 18 for SLE 12 SP5)

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 18 for SLE 12 SP5)
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Announcement ID:    SUSE-SU-2021:2366-1
Rating:             important
References:         #1185901 
Cross-References:   CVE-2021-23133
CVSS scores:
                    CVE-2021-23133 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-23133 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Live Patching 12-SP5
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   An update that fixes one vulnerability is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_71 fixes one issue.

   The following security issue was fixed:

   - CVE-2021-23133: Fixed a race condition in the SCTP sockets that can lead
     to kernel privilege escalation from the context of a network service or
     an unprivileged process. (bsc#1185901)


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-SP2-2021-2366=1 SUSE-SLE-Module-Live-Patching-15-SP2-2021-2373=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-2369=1



Package List:

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

      kernel-livepatch-5_3_18-24_52-default-6-2.2
      kernel-livepatch-5_3_18-24_52-default-debuginfo-6-2.2
      kernel-livepatch-5_3_18-24_61-default-3-2.1
      kernel-livepatch-5_3_18-24_61-default-debuginfo-3-2.1
      kernel-livepatch-SLE15-SP2_Update_11-debugsource-6-2.2
      kernel-livepatch-SLE15-SP2_Update_12-debugsource-3-2.1

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

      kgraft-patch-4_12_14-122_71-default-3-2.1


References:

   https://www.suse.com/security/cve/CVE-2021-23133.html
   https://bugzilla.suse.com/1185901