SUSE Security Update: Security update for the Linux Kernel (Live Patch 15
 for SLE 12 SP5)
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Announcement ID:    SUSE-SU-2021:0808-1
Rating:             important
References:         #1179616 #1179664 
Cross-References:   CVE-2020-27786 CVE-2020-29368
CVSS scores:
                    CVE-2020-27786 (NVD) : 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-27786 (SUSE): 7.8
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29368 (NVD) : 7
 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2020-29368 (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 Live Patching 12-SP5
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-122_60 fixes several issues.

   The following security issues were fixed:

   - CVE-2020-29368: Fixed an issue in copy-on-write implementation which
     could have granted unintended write access because of a race condition
     in a THP mapcount check (bsc#1179664).
   - CVE-2020-27786: Fixed a potential user after free which could have led
     to memory corruption or privilege escalation (bsc#1179616).


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 Live Patching 12-SP5:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2021-808=1



Package List:

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

      kgraft-patch-4_12_14-122_60-default-2-2.2


References:

   https://www.suse.com/security/cve/CVE-2020-27786.html
   https://www.suse.com/security/cve/CVE-2020-29368.html
   https://bugzilla.suse.com/1179616
   https://bugzilla.suse.com/1179664