Security update for the Linux Kernel (Live Patch 7 for SLE 15)

SUSE Security Update: Security update for the Linux Kernel (Live Patch 7 for SLE 15)
Announcement ID: SUSE-SU-2019:0236-1
Rating: important
References: #1119947
Cross-References: CVE-2018-16884
Affected Products:
  • SUSE Linux Enterprise Module for Live Patching 15

An update that fixes one vulnerability is now available.

Description:

This update for the Linux Kernel 4.12.14-25_25 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 Module for Live Patching 15:
    zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-233=1 SUSE-SLE-Module-Live-Patching-15-2019-234=1 SUSE-SLE-Module-Live-Patching-15-2019-235=1 SUSE-SLE-Module-Live-Patching-15-2019-236=1 SUSE-SLE-Module-Live-Patching-15-2019-237=1 SUSE-SLE-Module-Live-Patching-15-2019-238=1 SUSE-SLE-Module-Live-Patching-15-2019-239=1 SUSE-SLE-Module-Live-Patching-15-2019-240=1

Package List:

  • SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):
    • kernel-livepatch-4_12_14-23-default-8-22.2
    • kernel-livepatch-4_12_14-23-default-debuginfo-8-22.2
    • kernel-livepatch-4_12_14-25_13-default-5-2.1
    • kernel-livepatch-4_12_14-25_13-default-debuginfo-5-2.1
    • kernel-livepatch-4_12_14-25_16-default-4-2.1
    • kernel-livepatch-4_12_14-25_16-default-debuginfo-4-2.1
    • kernel-livepatch-4_12_14-25_19-default-4-2.1
    • kernel-livepatch-4_12_14-25_19-default-debuginfo-4-2.1
    • kernel-livepatch-4_12_14-25_22-default-3-2.1
    • kernel-livepatch-4_12_14-25_22-default-debuginfo-3-2.1
    • kernel-livepatch-4_12_14-25_25-default-2-2.1
    • kernel-livepatch-4_12_14-25_25-default-debuginfo-2-2.1
    • kernel-livepatch-4_12_14-25_3-default-7-2.1
    • kernel-livepatch-4_12_14-25_3-default-debuginfo-7-2.1
    • kernel-livepatch-4_12_14-25_6-default-7-2.1
    • kernel-livepatch-4_12_14-25_6-default-debuginfo-7-2.1
    • kernel-livepatch-SLE15_Update_0-debugsource-8-22.2

References: