SUSE-SU-2021:2695-1: important: Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP1)

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

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 26 for SLE 15 SP1)
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2695-1
Rating:             important
References:         #1186483 #1188842 
Cross-References:   CVE-2021-22543 CVE-2021-37576
CVSS scores:
                    CVE-2021-22543 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-37576 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15-SP2
                    SUSE Linux Enterprise Module for Live Patching 15-SP1
                    SUSE Linux Enterprise Module for Live Patching 15
                    SUSE Linux Enterprise Live Patching 12-SP5
                    SUSE Linux Enterprise Live Patching 12-SP4
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-197_99 fixes several issues.

   The following security issues were fixed:

   - CVE-2021-22543: Fixed an issue with KVM, related to the handling of
     VM_IO|VM_PFNMAP vmas, which allowed users with the ability to start and
     control a VM to read/write random pages of memory and could result in
     local privilege escalation (bsc#1186482).
   - CVE-2021-37576: On the powerpc platform KVM guest OS users could cause
     host OS memory corruption via rtas_args.nargs (bsc#1188838).


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-SP2-2021-2695=1

   - SUSE Linux Enterprise Module for Live Patching 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2021-2706=1

   - SUSE Linux Enterprise Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2021-2726=1

   - SUSE Linux Enterprise Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-2735=1

   - SUSE Linux Enterprise Live Patching 12-SP4:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2021-2749=1



Package List:

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

      kernel-livepatch-5_3_18-24_75-default-2-2.1
      kernel-livepatch-5_3_18-24_75-default-debuginfo-2-2.1
      kernel-livepatch-SLE15-SP2_Update_17-debugsource-2-2.1

   - SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64):

      kernel-livepatch-4_12_14-197_99-default-2-2.1

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

      kernel-livepatch-4_12_14-150_75-default-2-2.1
      kernel-livepatch-4_12_14-150_75-default-debuginfo-2-2.1

   - SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-122_80-default-2-2.1

   - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):

      kgraft-patch-4_12_14-95_80-default-2-2.1


References:

   https://www.suse.com/security/cve/CVE-2021-22543.html
   https://www.suse.com/security/cve/CVE-2021-37576.html
   https://bugzilla.suse.com/1186483
   https://bugzilla.suse.com/1188842