SUSE-SU-2018:0340-1: important: Security update for the Linux Kernel (Live Patch 2 for SLE 12 SP3)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 2 for SLE 12 SP3)
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Announcement ID:    SUSE-SU-2018:0340-1
Rating:             important
References:         #1069708 #1073230 
Cross-References:   CVE-2017-16939 CVE-2017-17712
Affected Products:
                    SUSE Linux Enterprise Live Patching 12-SP3
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.4.82-6_6 fixes several issues.

   The following security issues were fixed:

   - CVE-2017-17712: The raw_sendmsg() function had a race condition that
     lead to uninitialized stack pointer usage. This allowed a local user to
     execute code and gain privileges (bsc#1073230).
   - CVE-2017-16939: The XFRM dump policy implementation allowed local users
     to gain privileges or cause a denial of service (use-after-free) via a
     crafted SO_RCVBUF setsockopt system call in conjunction with
     XFRM_MSG_GETPOLICY Netlink messages (bsc#1069708).


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-SP3:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-241=1

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


Package List:

   - SUSE Linux Enterprise Live Patching 12-SP3 (x86_64):

      kgraft-patch-4_4_82-6_6-default-4-2.1
      kgraft-patch-4_4_82-6_6-default-debuginfo-4-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-16939.html
   https://www.suse.com/security/cve/CVE-2017-17712.html
   https://bugzilla.suse.com/1069708
   https://bugzilla.suse.com/1073230