SUSE-SU-2019:0326-1: important: Security update for the Linux Kernel (Live Patch 34 for SLE 12)

[sle-security-updates at lists.suse.com]

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

   https://www.suse.com/security/cve/CVE-2018-16884.html
   https://bugzilla.suse.com/1119947