SUSE-SU-2021:1373-1: important: Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP3)

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

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 36 for SLE 12 SP3)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1373-1
Rating:             important
References:         #1182294 
Cross-References:   CVE-2021-26930 CVE-2021-26931 CVE-2021-28688
                   
CVSS scores:
                    CVE-2021-26930 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-26930 (SUSE): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
                    CVE-2021-26931 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-26931 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
                    CVE-2021-28688 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Server for SAP 12-SP3
                    SUSE Linux Enterprise Server 12-SP3-LTSS
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.4.180-94_135 fixes one issue.

   The following security issues were fixed:

   - CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc##1182294,
     bsc#1183646).
   - CVE-2021-26930: Fixed an improper error handling in blkback's grant
     mapping (XSA-365 bsc#1182294).
   - CVE-2021-26931: Fixed an issue where Linux  kernel was treating grant
     mapping errors as bugs (XSA-362 bsc#1183022).


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 Server for SAP 12-SP3:

      zypper in -t patch SUSE-SLE-SAP-12-SP3-2021-1337=1 SUSE-SLE-SAP-12-SP3-2021-1338=1 SUSE-SLE-SAP-12-SP3-2021-1339=1 SUSE-SLE-SAP-12-SP3-2021-1340=1 SUSE-SLE-SAP-12-SP3-2021-1371=1 SUSE-SLE-SAP-12-SP3-2021-1372=1 SUSE-SLE-SAP-12-SP3-2021-1373=1

   - SUSE Linux Enterprise Server 12-SP3-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2021-1337=1 SUSE-SLE-SERVER-12-SP3-2021-1338=1 SUSE-SLE-SERVER-12-SP3-2021-1339=1 SUSE-SLE-SERVER-12-SP3-2021-1340=1 SUSE-SLE-SERVER-12-SP3-2021-1371=1 SUSE-SLE-SERVER-12-SP3-2021-1372=1 SUSE-SLE-SERVER-12-SP3-2021-1373=1



Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP3 (ppc64le x86_64):

      kgraft-patch-4_4_180-94_116-default-10-2.2
      kgraft-patch-4_4_180-94_116-default-debuginfo-10-2.2
      kgraft-patch-4_4_180-94_121-default-9-2.2
      kgraft-patch-4_4_180-94_121-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_124-default-9-2.2
      kgraft-patch-4_4_180-94_124-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_127-default-9-2.2
      kgraft-patch-4_4_180-94_127-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_130-default-8-2.2
      kgraft-patch-4_4_180-94_130-default-debuginfo-8-2.2
      kgraft-patch-4_4_180-94_135-default-6-2.2
      kgraft-patch-4_4_180-94_135-default-debuginfo-6-2.2
      kgraft-patch-4_4_180-94_138-default-4-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-4-2.2

   - SUSE Linux Enterprise Server 12-SP3-LTSS (ppc64le x86_64):

      kgraft-patch-4_4_180-94_116-default-10-2.2
      kgraft-patch-4_4_180-94_116-default-debuginfo-10-2.2
      kgraft-patch-4_4_180-94_121-default-9-2.2
      kgraft-patch-4_4_180-94_121-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_124-default-9-2.2
      kgraft-patch-4_4_180-94_124-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_127-default-9-2.2
      kgraft-patch-4_4_180-94_127-default-debuginfo-9-2.2
      kgraft-patch-4_4_180-94_130-default-8-2.2
      kgraft-patch-4_4_180-94_130-default-debuginfo-8-2.2
      kgraft-patch-4_4_180-94_135-default-6-2.2
      kgraft-patch-4_4_180-94_135-default-debuginfo-6-2.2
      kgraft-patch-4_4_180-94_138-default-4-2.2
      kgraft-patch-4_4_180-94_138-default-debuginfo-4-2.2


References:

   https://www.suse.com/security/cve/CVE-2021-26930.html
   https://www.suse.com/security/cve/CVE-2021-26931.html
   https://www.suse.com/security/cve/CVE-2021-28688.html
   https://bugzilla.suse.com/1182294