SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:3049-1
Rating:             important
References:         #1008831 #1011685 #1012754 
Cross-References:   CVE-2016-8632 CVE-2016-8655 CVE-2016-9555
                   
Affected Products:
                    SUSE Linux Enterprise Workstation Extension 12-SP2
                    SUSE Linux Enterprise Software Development Kit 12-SP2
                    SUSE Linux Enterprise Server for Raspberry Pi 12-SP2
                    SUSE Linux Enterprise Server 12-SP2
                    SUSE Linux Enterprise Live Patching 12
                    SUSE Linux Enterprise High Availability 12-SP2
                    SUSE Linux Enterprise Desktop 12-SP2
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:



   The SUSE Linux Enterprise 12 SP2 kernel was updated to receive critical
   security fixes.

   The following security bugs were fixed:

   - CVE-2016-8655: A race condition in the af_packet packet_set_ring
     function could be used by local attackers to crash the kernel or gain
     privileges (bsc#1012754).
   - CVE-2016-8632: The tipc_msg_build function in net/tipc/msg.c in the
     Linux kernel did not validate the relationship between the minimum
     fragment length and the maximum packet size, which allowed local users     to gain privileges or cause a denial of service (heap-based buffer
     overflow) by leveraging the CAP_NET_ADMIN capability (bnc#1008831).
   - CVE-2016-9555: The sctp_sf_ootb function in net/sctp/sm_statefuns.c in
     the Linux kernel lacks chunk-length checking for the first chunk, which
     allowed remote attackers to cause a denial of service (out-of-bounds
     slab access) or possibly have unspecified other impact via crafted SCTP
     data (bnc#1011685).


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 Workstation Extension 12-SP2:

      zypper in -t patch SUSE-SLE-WE-12-SP2-2016-1772=1

   - SUSE Linux Enterprise Software Development Kit 12-SP2:

      zypper in -t patch SUSE-SLE-SDK-12-SP2-2016-1772=1

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:

      zypper in -t patch SUSE-SLE-RPI-12-SP2-2016-1772=1

   - SUSE Linux Enterprise Server 12-SP2:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2016-1772=1

   - SUSE Linux Enterprise Live Patching 12:

      zypper in -t patch SUSE-SLE-Live-Patching-12-2016-1772=1

   - SUSE Linux Enterprise High Availability 12-SP2:

      zypper in -t patch SUSE-SLE-HA-12-SP2-2016-1772=1

   - SUSE Linux Enterprise Desktop 12-SP2:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2016-1772=1

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


Package List:

   - SUSE Linux Enterprise Workstation Extension 12-SP2 (x86_64):

      kernel-default-debuginfo-4.4.21-84.1
      kernel-default-debugsource-4.4.21-84.1
      kernel-default-extra-4.4.21-84.1
      kernel-default-extra-debuginfo-4.4.21-84.1

   - SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 ppc64le s390x x86_64):

      kernel-obs-build-4.4.21-84.1
      kernel-obs-build-debugsource-4.4.21-84.1

   - SUSE Linux Enterprise Software Development Kit 12-SP2 (noarch):

      kernel-docs-4.4.21-84.3

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64):

      kernel-default-4.4.21-84.1
      kernel-default-base-4.4.21-84.1
      kernel-default-base-debuginfo-4.4.21-84.1
      kernel-default-debuginfo-4.4.21-84.1
      kernel-default-debugsource-4.4.21-84.1
      kernel-default-devel-4.4.21-84.1
      kernel-syms-4.4.21-84.1

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (noarch):

      kernel-devel-4.4.21-84.1
      kernel-macros-4.4.21-84.1
      kernel-source-4.4.21-84.1

   - SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le x86_64):

      kernel-default-4.4.21-84.1
      kernel-default-base-4.4.21-84.1
      kernel-default-base-debuginfo-4.4.21-84.1
      kernel-default-debuginfo-4.4.21-84.1
      kernel-default-debugsource-4.4.21-84.1
      kernel-default-devel-4.4.21-84.1
      kernel-syms-4.4.21-84.1

   - SUSE Linux Enterprise Server 12-SP2 (noarch):

      kernel-devel-4.4.21-84.1
      kernel-macros-4.4.21-84.1
      kernel-source-4.4.21-84.1

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-4_4_21-84-default-1-2.1

   - SUSE Linux Enterprise High Availability 12-SP2 (ppc64le s390x x86_64):

      cluster-md-kmp-default-4.4.21-84.1
      cluster-md-kmp-default-debuginfo-4.4.21-84.1
      cluster-network-kmp-default-4.4.21-84.1
      cluster-network-kmp-default-debuginfo-4.4.21-84.1
      dlm-kmp-default-4.4.21-84.1
      dlm-kmp-default-debuginfo-4.4.21-84.1
      gfs2-kmp-default-4.4.21-84.1
      gfs2-kmp-default-debuginfo-4.4.21-84.1
      kernel-default-debuginfo-4.4.21-84.1
      kernel-default-debugsource-4.4.21-84.1
      ocfs2-kmp-default-4.4.21-84.1
      ocfs2-kmp-default-debuginfo-4.4.21-84.1

   - SUSE Linux Enterprise Desktop 12-SP2 (x86_64):

      kernel-default-4.4.21-84.1
      kernel-default-debuginfo-4.4.21-84.1
      kernel-default-debugsource-4.4.21-84.1
      kernel-default-devel-4.4.21-84.1
      kernel-default-extra-4.4.21-84.1
      kernel-default-extra-debuginfo-4.4.21-84.1
      kernel-syms-4.4.21-84.1

   - SUSE Linux Enterprise Desktop 12-SP2 (noarch):

      kernel-devel-4.4.21-84.1
      kernel-macros-4.4.21-84.1
      kernel-source-4.4.21-84.1


References:

   https://www.suse.com/security/cve/CVE-2016-8632.html
   https://www.suse.com/security/cve/CVE-2016-8655.html
   https://www.suse.com/security/cve/CVE-2016-9555.html
   https://bugzilla.suse.com/1008831
   https://bugzilla.suse.com/1011685
   https://bugzilla.suse.com/1012754