Security update for the Linux Kernel (Live Patch 34 for SLE 12)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 34 for SLE 12)
Announcement ID: SUSE-SU-2019:0326-1
Rating: important
References: #1119947
Cross-References: CVE-2018-16884
Affected Products:
  • SUSE Linux Enterprise Server 12-LTSS

An update that fixes one vulnerability is now available.

Description:

This update for the Linux Kernel 3.12.61-52_128 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 could 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 Server 12-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-2019-321=1 SUSE-SLE-SERVER-12-2019-322=1 SUSE-SLE-SERVER-12-2019-323=1 SUSE-SLE-SERVER-12-2019-324=1 SUSE-SLE-SERVER-12-2019-325=1 SUSE-SLE-SERVER-12-2019-326=1 SUSE-SLE-SERVER-12-2019-327=1 SUSE-SLE-SERVER-12-2019-328=1

Package List:

  • SUSE Linux Enterprise Server 12-LTSS (x86_64):
    • kgraft-patch-3_12_61-52_119-default-12-2.1
    • kgraft-patch-3_12_61-52_119-xen-12-2.1
    • kgraft-patch-3_12_61-52_122-default-12-2.1
    • kgraft-patch-3_12_61-52_122-xen-12-2.1
    • kgraft-patch-3_12_61-52_125-default-11-2.1
    • kgraft-patch-3_12_61-52_125-xen-11-2.1
    • kgraft-patch-3_12_61-52_128-default-9-2.1
    • kgraft-patch-3_12_61-52_128-xen-9-2.1
    • kgraft-patch-3_12_61-52_133-default-8-2.1
    • kgraft-patch-3_12_61-52_133-xen-8-2.1
    • kgraft-patch-3_12_61-52_136-default-8-2.1
    • kgraft-patch-3_12_61-52_136-xen-8-2.1
    • kgraft-patch-3_12_61-52_141-default-7-2.1
    • kgraft-patch-3_12_61-52_141-xen-7-2.1
    • kgraft-patch-3_12_61-52_146-default-5-2.1
    • kgraft-patch-3_12_61-52_146-xen-5-2.1

References: