SUSE Security Update: Security update for the Linux Kernel (Live Patch 11 for SLE 15 SP3)
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Announcement ID:    SUSE-SU-2022:0436-1
Rating:             critical
References:         #1194460 #1195308 
Cross-References:   CVE-2021-4083 CVE-2022-0435
CVSS scores:
                    CVE-2021-4083 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-0435 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/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 5.3.18-59_40 fixes several issues.

   The following security issues were fixed:

   - CVE-2022-0435: Fixed remote stack overflow in net/tipc module that
     validate domain record count on input (bsc#1195308).
   - CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage
     collection for Unix domain socket file handlers when users call close()
     and fget() simultaneouslyand can potentially trigger a race condition
     (bnc#1194460).


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-SP3-2022-436=1



Package List:

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

      kernel-livepatch-5_3_18-59_40-default-3-150300.2.2

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

      kernel-livepatch-5_3_18-59_40-default-debuginfo-3-150300.2.2


References:

   https://www.suse.com/security/cve/CVE-2021-4083.html
   https://www.suse.com/security/cve/CVE-2022-0435.html
   https://bugzilla.suse.com/1194460
   https://bugzilla.suse.com/1195308