Security update for the Linux Kernel (Live Patch 10 for SLE 12 SP3)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 10 for SLE 12 SP3)
Announcement ID: SUSE-SU-2019:0298-1
Rating: important
References: #1119947
Cross-References: CVE-2018-16884
Affected Products:
  • SUSE Linux Enterprise Live Patching 12-SP4
  • SUSE Linux Enterprise Live Patching 12-SP3

An update that fixes one vulnerability is now available.

Description:

This update for the Linux Kernel 4.4.120-94_17 fixes one issue.
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).

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-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2019-293=1 SUSE-SLE-Live-Patching-12-SP4-2019-301=1
  • SUSE Linux Enterprise Live Patching 12-SP3:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2019-296=1 SUSE-SLE-Live-Patching-12-SP3-2019-297=1 SUSE-SLE-Live-Patching-12-SP3-2019-298=1 SUSE-SLE-Live-Patching-12-SP3-2019-300=1 SUSE-SLE-Live-Patching-12-SP3-2019-302=1

Package List:

  • SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le x86_64):
    • kgraft-patch-4_12_14-94_41-default-3-2.7.2
    • kgraft-patch-4_12_14-94_41-default-debuginfo-3-2.7.2
    • kgraft-patch-4_12_14-95_3-default-2-2.1
    • kgraft-patch-SLE12-SP4_Update_0-debugsource-3-2.7.2
  • SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):
    • kgraft-patch-4_4_114-94_11-default-11-2.1
    • kgraft-patch-4_4_114-94_11-default-debuginfo-11-2.1
    • kgraft-patch-4_4_114-94_14-default-11-2.1
    • kgraft-patch-4_4_114-94_14-default-debuginfo-11-2.1
    • kgraft-patch-4_4_120-94_17-default-10-2.1
    • kgraft-patch-4_4_120-94_17-default-debuginfo-10-2.1
    • kgraft-patch-4_4_126-94_22-default-10-2.1
    • kgraft-patch-4_4_126-94_22-default-debuginfo-10-2.1
    • kgraft-patch-4_4_131-94_29-default-8-2.1
    • kgraft-patch-4_4_131-94_29-default-debuginfo-8-2.1

References: