Security update for the Linux Kernel (Live Patch 21 for SLE 12 SP3)

Announcement ID: SUSE-SU-2019:0295-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2018-16884 ( SUSE ): 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-16884 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2018-16884 ( NVD ): 6.5 CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP3
  • SUSE Linux Enterprise Live Patching 12-SP3
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server for SAP Applications 12 SP3

An update that solves one vulnerability and has two security fixes can now be installed.

Description:

This update for the Linux Kernel 4.4.162-94_69 fixes several issues.

The following security issue was fixed:

  • CVE-2018-16884: A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time could make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out (bsc#1119947).

The following non-security issue was fixed:

  • Fixed a regression where console would say "shutdown reached" but system would not reboot (bsc#1122233).

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-SP3
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2019-292=1 SUSE-SLE-Live-Patching-12-SP3-2019-294=1 SUSE-SLE-Live-Patching-12-SP3-2019-295=1 SUSE-SLE-Live-Patching-12-SP3-2019-299=1 SUSE-SLE-Live-Patching-12-SP3-2019-304=1 SUSE-SLE-Live-Patching-12-SP3-2019-303=1 SUSE-SLE-Live-Patching-12-SP3-2019-307=1 SUSE-SLE-Live-Patching-12-SP3-2019-308=1 SUSE-SLE-Live-Patching-12-SP3-2019-305=1 SUSE-SLE-Live-Patching-12-SP3-2019-306=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64)
    • kgraft-patch-4_4_132-94_33-default-debuginfo-8-2.1
    • kgraft-patch-4_4_143-94_47-default-debuginfo-4-2.1
    • kgraft-patch-4_4_155-94_50-default-4-2.1
    • kgraft-patch-4_4_155-94_50-default-debuginfo-4-2.1
    • kgraft-patch-4_4_162-94_72-default-debuginfo-2-2.1
    • kgraft-patch-4_4_156-94_57-default-debuginfo-4-2.1
    • kgraft-patch-4_4_143-94_47-default-4-2.1
    • kgraft-patch-4_4_162-94_69-default-debuginfo-2-2.1
    • kgraft-patch-4_4_156-94_61-default-debuginfo-4-2.1
    • kgraft-patch-4_4_162-94_72-default-2-2.1
    • kgraft-patch-4_4_132-94_33-default-8-2.1
    • kgraft-patch-4_4_140-94_42-default-6-2.1
    • kgraft-patch-4_4_162-94_69-default-2-2.1
    • kgraft-patch-4_4_156-94_64-default-3-2.1
    • kgraft-patch-4_4_156-94_64-default-debuginfo-3-2.1
    • kgraft-patch-4_4_156-94_57-default-4-2.1
    • kgraft-patch-4_4_156-94_61-default-4-2.1
    • kgraft-patch-4_4_138-94_39-default-debuginfo-6-2.1
    • kgraft-patch-4_4_140-94_42-default-debuginfo-6-2.1
    • kgraft-patch-4_4_138-94_39-default-6-2.1

References: