SUSE Security Update: Security update for the Linux Kernel (Live Patch 29
 for SLE 15 SP2)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:3465-1
Rating:             important
References:         #1196959 #1199695 #1203116 
Cross-References:   CVE-2021-39698 CVE-2022-29581 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-2022-29581 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-29581 (SUSE): 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/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-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
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 5.3.18-150200_24_126 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-2022-29581: Fixed an improper Update of Reference Count
     vulnerability in net/sched that causes privilege escalation to root
     (bsc#1199695).
   - 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-SP2:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-3465=1



Package List:

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

      kernel-livepatch-5_3_18-150200_24_126-default-3-150200.2.2
      kernel-livepatch-5_3_18-150200_24_126-default-debuginfo-3-150200.2.2
      kernel-livepatch-SLE15-SP2_Update_29-debugsource-3-150200.2.2


References:

   https://www.suse.com/security/cve/CVE-2021-39698.html
   https://www.suse.com/security/cve/CVE-2022-29581.html
   https://www.suse.com/security/cve/CVE-2022-39188.html
   https://bugzilla.suse.com/1196959
   https://bugzilla.suse.com/1199695
   https://bugzilla.suse.com/1203116