Security update for the Linux Kernel (Live Patch 16 for SLE 12 SP5)

Announcement ID: SUSE-SU-2021:1046-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-29368 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2020-29368 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-27363 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • CVE-2021-27363 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
  • CVE-2021-27364 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • CVE-2021-27364 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • CVE-2021-27365 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-27365 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP5
  • SUSE Linux Enterprise Live Patching 12-SP5
  • SUSE Linux Enterprise Server 12 SP5
  • SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves four vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 4.12.14-122_63 fixes several issues.

The following security issues were fixed:

  • CVE-2021-27365: Fixed an issue where data structures did not have appropriate length constraints or checks, and could exceed the PAGE_SIZE value (bsc#1183491).
  • CVE-2021-27363: Fixed a kernel pointer leak which could have been used to determine the address of the iscsi_transport structure (bsc#1183120).
  • CVE-2021-27364: Fixed an issue where an unprivileged user could craft Netlink messages (bsc#1182717).
  • CVE-2020-29368: Fixed a race condition in a THP mapcount check (bsc#1179664).

Patch Instructions:

To install this SUSE 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-SP5-2021-1046=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64)
    • kgraft-patch-4_12_14-122_63-default-2-2.2

References: