SUSE-SU-2022:3415-1: important: Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP3)

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

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 23 for SLE 15 SP3)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:3415-1
Rating:             important
References:         #1196959 #1203116 
Cross-References:   CVE-2021-39698 CVE-2022-39188
CVSS scores:
                    CVE-2021-39698 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-39698 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-39188 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-39188 (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 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_90 fixes several issues.

   The following security issues were fixed:

   - CVE-2022-39188: Fixed a race condition between unmap_mapping_range() and
     munmap() on VM_PFNMAP mappings leads to stale TLB entry (bsc#1203116).
   - CVE-2021-39698: Fixed a memory corruption due to a use after free that
     could lead to local escalation of privilege with no additional execution
     privileges needed (bsc#1196959).


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-SP3-2022-3415=1



Package List:

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

      kernel-livepatch-5_3_18-150300_59_90-default-3-150300.2.2


References:

   https://www.suse.com/security/cve/CVE-2021-39698.html
   https://www.suse.com/security/cve/CVE-2022-39188.html
   https://bugzilla.suse.com/1196959
   https://bugzilla.suse.com/1203116