SUSE-SU-2017:1939-1: important: Security update for Linux Kernel Live Patch 21 for SLE 12

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for Linux Kernel Live Patch 21 for SLE 12
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:1939-1
Rating:             important
References:         #1039496 
Cross-References:   CVE-2017-1000364
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12
                    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_72 fixes one issue.

   The following security bugs were fixed:

   - CVE-2017-1000364: An issue was discovered in the size of the stack guard
     page on Linux, specifically a 4k stack guard page is not sufficiently
     large and can be "jumped" over (the stack guard page is bypassed)
     (bsc#1039496).


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server for SAP 12:

      zypper in -t patch SUSE-SLE-SAP-12-2017-1206=1

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2017-1206=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Server for SAP 12 (x86_64):

      kgraft-patch-3_12_61-52_72-default-2-3.1
      kgraft-patch-3_12_61-52_72-xen-2-3.1

   - SUSE Linux Enterprise Server 12-LTSS (x86_64):

      kgraft-patch-3_12_61-52_72-default-2-3.1
      kgraft-patch-3_12_61-52_72-xen-2-3.1


References:

   https://www.suse.com/security/cve/CVE-2017-1000364.html
   https://bugzilla.suse.com/1039496