SUSE Security Update: Security update for Linux Kernel Live Patch 1 for SLE 12 SP2
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Announcement ID:    SUSE-SU-2017:0777-1
Rating:             important
References:         #1025013 #1025254 
Cross-References:   CVE-2017-5970
Affected Products:
                    SUSE Linux Enterprise Live Patching 12
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   An update that solves one vulnerability and has one errata
   is now available.

Description:

   This update for the Linux Kernel 4.4.21-81 fixes several issues.

   The following security bug was fixed:

   - CVE-2017-5970: The ipv4_pktinfo_prepare function in
     net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a
     denial of service (system crash) via (1) an application that made
     crafted system calls or possibly (2) IPv4 traffic with invalid IP
     options (bsc#1025013).

   The following non-security bug was fixed:
   - Fix for a "Data miscompare on a read" which was observed during the
     rebuilding of degraded MDRAID VDs. (bsc#1025254)


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-12-2017-435=1

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


Package List:

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-4_4_21-81-default-4-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-5970.html
   https://bugzilla.suse.com/1025013
   https://bugzilla.suse.com/1025254