Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2017:1618-1
Rating: critical
References: #1039348 #1042292
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12
  • SUSE Linux Enterprise Server 12-LTSS
  • SUSE Linux Enterprise Module for Public Cloud 12
    		•

    An update that solves one vulnerability and has one errata is now available.

    Description:


    The SUSE Linux Enterprise 12 kernel was updated to receive various
    security and bugfixes.


    The following security bugs were fixed:

    - CVE-2017-1000364: The default stack guard page was too small and could
    be "jumped over" by userland programs using more than one page of stack
    in functions and so lead to memory corruption. This update extends the
    stack guard page to 1 MB (for 4k pages) and 16 MB (for 64k pages) to
    reduce this attack vector. This is not a kernel bugfix, but a hardening
    measure against this kind of userland attack.(bsc#1039348)

    The following non-security bugs were fixed:

    netfilter: A use-after-free was fixed that could cause a kernel panic on a
    system shutdown. (bsc#1042292)

    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-12-2017-995=1
    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2017-995=1
    • SUSE Linux Enterprise Module for Public Cloud 12:
      zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2017-995=1

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

    Package List:

    • SUSE Linux Enterprise Server for SAP 12 (noarch):
      • kernel-devel-3.12.61-52.77.1
      • kernel-macros-3.12.61-52.77.1
      • kernel-source-3.12.61-52.77.1
    • SUSE Linux Enterprise Server for SAP 12 (x86_64):
      • kernel-default-3.12.61-52.77.1
      • kernel-default-base-3.12.61-52.77.1
      • kernel-default-base-debuginfo-3.12.61-52.77.1
      • kernel-default-debuginfo-3.12.61-52.77.1
      • kernel-default-debugsource-3.12.61-52.77.1
      • kernel-default-devel-3.12.61-52.77.1
      • kernel-syms-3.12.61-52.77.1
      • kernel-xen-3.12.61-52.77.1
      • kernel-xen-base-3.12.61-52.77.1
      • kernel-xen-base-debuginfo-3.12.61-52.77.1
      • kernel-xen-debuginfo-3.12.61-52.77.1
      • kernel-xen-debugsource-3.12.61-52.77.1
      • kernel-xen-devel-3.12.61-52.77.1
      • kgraft-patch-3_12_61-52_77-default-1-4.1
      • kgraft-patch-3_12_61-52_77-xen-1-4.1
    • SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
      • kernel-default-3.12.61-52.77.1
      • kernel-default-base-3.12.61-52.77.1
      • kernel-default-base-debuginfo-3.12.61-52.77.1
      • kernel-default-debuginfo-3.12.61-52.77.1
      • kernel-default-debugsource-3.12.61-52.77.1
      • kernel-default-devel-3.12.61-52.77.1
      • kernel-syms-3.12.61-52.77.1
    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • kernel-xen-3.12.61-52.77.1
      • kernel-xen-base-3.12.61-52.77.1
      • kernel-xen-base-debuginfo-3.12.61-52.77.1
      • kernel-xen-debuginfo-3.12.61-52.77.1
      • kernel-xen-debugsource-3.12.61-52.77.1
      • kernel-xen-devel-3.12.61-52.77.1
      • kgraft-patch-3_12_61-52_77-default-1-4.1
      • kgraft-patch-3_12_61-52_77-xen-1-4.1
    • SUSE Linux Enterprise Server 12-LTSS (noarch):
      • kernel-devel-3.12.61-52.77.1
      • kernel-macros-3.12.61-52.77.1
      • kernel-source-3.12.61-52.77.1
    • SUSE Linux Enterprise Server 12-LTSS (s390x):
      • kernel-default-man-3.12.61-52.77.1
    • SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):
      • kernel-ec2-3.12.61-52.77.1
      • kernel-ec2-debuginfo-3.12.61-52.77.1
      • kernel-ec2-debugsource-3.12.61-52.77.1
      • kernel-ec2-devel-3.12.61-52.77.1
      • kernel-ec2-extra-3.12.61-52.77.1
      • kernel-ec2-extra-debuginfo-3.12.61-52.77.1

    References: