SUSE Security Update: Security update for Linux Kernel Live Patch 15 for SLE 12 SP1
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Announcement ID:    SUSE-SU-2017:2094-1
Rating:             important
References:         #1038564 #1042892 #1044878 #1050751 
Cross-References:   CVE-2017-7533 CVE-2017-8890 CVE-2017-9242
                   
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12-SP1
                    SUSE Linux Enterprise Server 12-SP1-LTSS
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   An update that solves three vulnerabilities and has one
   errata is now available.

Description:

   This update for the Linux Kernel 3.12.74-60_64_40 fixes several issues.

   The following security bugs were fixed:

   - CVE-2017-7533: A bug in inotify code allowed local users to escalate
     privilege (bsc#1050751).
   - CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
     in the Linux kernel is too late in checking whether an overwrite of an
     skb data structure may occur, which allowed local users to cause a
     denial of service (system crash) via crafted system calls (bsc#1042892).
   - CVE-2017-8890: The inet_csk_clone_lock function in
     net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to
     cause a denial of service (double free) or possibly have unspecified
     other impact by leveraging use of the accept system call (bsc#1038564).

   The following non-security bug was fixed:

   - A SUSE Linux Enterprise specific regression in tearing down network
     namespaces was fixed (bsc#1044878)


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-SP1:

      zypper in -t patch SUSE-SLE-SAP-12-SP1-2017-1291=1

   - SUSE Linux Enterprise Server 12-SP1-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-1291=1

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


Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

      kgraft-patch-3_12_74-60_64_40-default-3-2.1
      kgraft-patch-3_12_74-60_64_40-xen-3-2.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

      kgraft-patch-3_12_74-60_64_40-default-3-2.1
      kgraft-patch-3_12_74-60_64_40-xen-3-2.1


References:

   https://www.suse.com/security/cve/CVE-2017-7533.html
   https://www.suse.com/security/cve/CVE-2017-8890.html
   https://www.suse.com/security/cve/CVE-2017-9242.html
   https://bugzilla.suse.com/1038564
   https://bugzilla.suse.com/1042892
   https://bugzilla.suse.com/1044878
   https://bugzilla.suse.com/1050751