SUSE-SU-2016:2001-1: important: Security update for Linux Kernel Live Patch 13 for SLE 12

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

   SUSE Security Update: Security update for Linux Kernel Live Patch 13 for SLE 12
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2001-1
Rating:             important
References:         #955837 #971793 #973570 #979064 #979074 #980856 
                    #980883 #984764 
Cross-References:   CVE-2013-7446 CVE-2015-8816 CVE-2016-0758
                    CVE-2016-2053 CVE-2016-3134 CVE-2016-4470
                    CVE-2016-4565
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12
                    SUSE Linux Enterprise Server 12-LTSS
______________________________________________________________________________

   An update that solves 7 vulnerabilities and has one errata
   is now available.

Description:

   This update for the Linux Kernel 3.12.55-52_45 fixes several issues.

   The following security bugs were fixed:
   - CVE-2016-4470: The key_reject_and_link function in security/keys/key.c
     in the Linux kernel did not ensure that a certain data structure is
     initialized, which allowed local users to cause a denial of service
     (system crash) via vectors involving a crafted keyctl request2 command
     (bsc#984764).
   - CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel
     incorrectly relied on the write system call, which allowed local users
     to cause a denial of service (kernel memory write operation) or possibly
     have unspecified other impact via a uAPI interface (bsc#980883).
   - CVE-2016-0758: Integer overflow in lib/asn1_decoder.c in the Linux
     kernel allowed local users to gain privileges via crafted ASN.1 data
     (bsc#980856).
   - CVE-2016-2053: The asn1_ber_decoder function in lib/asn1_decoder.c in
     the Linux kernel allowed attackers to cause a denial of service (panic)
     via an ASN.1 BER file that lacks a public key, leading to mishandling by
     the public_key_verify_signature function in
     crypto/asymmetric_keys/public_key.c (bsc#979074).
   - CVE-2015-8816: The hub_activate function in drivers/usb/core/hub.c in
     the Linux kernel did not properly maintain a hub-interface data
     structure, which allowed physically proximate attackers to cause a
     denial of service (invalid memory access and system crash) or possibly
     have unspecified other impact by unplugging a USB hub device
     (bsc#979064).
   - CVE-2016-3134: The netfilter subsystem in the Linux kernel did not
     validate certain offset fields, which allowed local users to gain
     privileges or cause a denial of service (heap memory corruption) via an
     IPT_SO_SET_REPLACE setsockopt call (bsc#971793).
   - CVE-2013-7446: Use-after-free vulnerability in net/unix/af_unix.c in the
     Linux kernel allowed local users to bypass intended AF_UNIX socket
     permissions or cause a denial of service (panic) via crafted epoll_ctl
     calls (bsc#973570, bsc#955837).


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-12-2016-1172=1

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2016-1172=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_55-52_45-default-2-2.3
      kgraft-patch-3_12_55-52_45-xen-2-2.3

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

      kgraft-patch-3_12_55-52_45-default-2-2.3
      kgraft-patch-3_12_55-52_45-xen-2-2.3


References:

   https://www.suse.com/security/cve/CVE-2013-7446.html
   https://www.suse.com/security/cve/CVE-2015-8816.html
   https://www.suse.com/security/cve/CVE-2016-0758.html
   https://www.suse.com/security/cve/CVE-2016-2053.html
   https://www.suse.com/security/cve/CVE-2016-3134.html
   https://www.suse.com/security/cve/CVE-2016-4470.html
   https://www.suse.com/security/cve/CVE-2016-4565.html
   https://bugzilla.suse.com/955837
   https://bugzilla.suse.com/971793
   https://bugzilla.suse.com/973570
   https://bugzilla.suse.com/979064
   https://bugzilla.suse.com/979074
   https://bugzilla.suse.com/980856
   https://bugzilla.suse.com/980883
   https://bugzilla.suse.com/984764