SUSE-SU-2018:3880-1: important: Security update for the Linux Kernel (Live Patch 0 for SLE 15)

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 0 for SLE 15)
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Announcement ID:    SUSE-SU-2018:3880-1
Rating:             important
References:         #1103098 #1112039 
Cross-References:   CVE-2018-18386 CVE-2018-5391
Affected Products:
                    SUSE Linux Enterprise Module for Live Patching 15
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for the Linux Kernel 4.12.14-23 fixes several issues.

   The following security issues were fixed:

   - CVE-2018-5391: Fixed a denial of service attack with low rates of
     specially modified packets targeting IP fragment re-assembly. An
     attacker may have caused a denial of service condition by sending
     specially crafted IP fragments. The current vulnerability
     (CVE-2018-5391) became exploitable in the Linux kernel with the increase
     of the IP fragment reassembly queue size (bsc#1103098).
   - CVE-2018-18386: The drivers/tty/n_tty.c allowed local attackers (who are
     able to access pseudo terminals) to hang/block further usage of any
     pseudo terminal devices due to an EXTPROC versus ICANON confusion in
     TIOCINQ (bsc#1112039).


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Module for Live Patching 15:

      zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2018-2768=1



Package List:

   - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64):

      kernel-livepatch-4_12_14-23-default-6-16.2
      kernel-livepatch-4_12_14-23-default-debuginfo-6-16.2
      kernel-livepatch-SLE15_Update_0-debugsource-6-16.2


References:

   https://www.suse.com/security/cve/CVE-2018-18386.html
   https://www.suse.com/security/cve/CVE-2018-5391.html
   https://bugzilla.suse.com/1103098
   https://bugzilla.suse.com/1112039