SUSE-SU-2016:2000-1: important: Security update for Linux Kernel Live Patch 4 for SLE 12 SP1

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

   SUSE Security Update: Security update for Linux Kernel Live Patch 4 for SLE 12 SP1
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2000-1
Rating:             important
References:         #971793 #979074 #980856 #980883 #983144 #984764 
                    
Cross-References:   CVE-2013-7446 CVE-2016-0758 CVE-2016-1583
                    CVE-2016-2053 CVE-2016-3134 CVE-2016-4470
                    CVE-2016-4565
Affected Products:
                    SUSE Linux Enterprise Live Patching 12
______________________________________________________________________________

   An update that fixes 7 vulnerabilities is now available.

Description:

   This update for the Linux Kernel 3.12.57-60_35 fixes the several issues.

   These security issues 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-2016-1583: The ecryptfs_privileged_open function in
     fs/ecryptfs/kthread.c in the Linux kernel allowed local users to gain
     privileges or cause a denial of service (stack memory consumption) via
     vectors involving crafted mmap calls for /proc pathnames, leading to
     recursive pagefault handling (bsc#983144).
   - 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-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).


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 Live Patching 12:

      zypper in -t patch SUSE-SLE-Live-Patching-12-2016-1179=1

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


Package List:

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-3_12_57-60_35-default-2-2.2
      kgraft-patch-3_12_57-60_35-xen-2-2.2


References:

   https://www.suse.com/security/cve/CVE-2013-7446.html
   https://www.suse.com/security/cve/CVE-2016-0758.html
   https://www.suse.com/security/cve/CVE-2016-1583.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/971793
   https://bugzilla.suse.com/979074
   https://bugzilla.suse.com/980856
   https://bugzilla.suse.com/980883
   https://bugzilla.suse.com/983144
   https://bugzilla.suse.com/984764