SUSE Security Update: Security update for the Linux Kernel (Live Patch 15 for SLE 15 SP3)
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Announcement ID:    SUSE-SU-2022:1034-1
Rating:             important
References:         #1194463 #1196301 
Cross-References:   CVE-2021-0920 CVE-2022-25636
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
                    CVE-2022-25636 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-25636 (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-SP3
                    SUSE Linux Enterprise Micro 5.1
                    SUSE Linux Enterprise Module for Live Patching 15-SP3
                    SUSE Linux Enterprise Server 15-SP3
                    SUSE Linux Enterprise Server for SAP Applications 15-SP3
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 5.3.18-150300_59_54 fixes several issues.

   The following security issues were fixed:

   - CVE-2022-25636: Fixed an issue which allowed a local users to gain
     privileges because of a heap out-of-bounds write in nf_dup_netdev.c,
     related to nf_tables_offload (bsc#1196299).
   - 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-SP3:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2022-1034=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15-SP3 (ppc64le s390x x86_64):

      kernel-livepatch-5_3_18-150300_59_54-default-2-150300.2.1


References:

   https://www.suse.com/security/cve/CVE-2021-0920.html
   https://www.suse.com/security/cve/CVE-2022-25636.html
   https://bugzilla.suse.com/1194463
   https://bugzilla.suse.com/1196301