SUSE-SU-2018:3865-1: important: Security update for the Linux Kernel (Live Patch 6 for SLE 12 SP3)

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

   SUSE Security Update: Security update for the Linux Kernel (Live Patch 6 for SLE 12 SP3)
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Announcement ID:    SUSE-SU-2018:3865-1
Rating:             important
References:         #1103098 #1112039 
Cross-References:   CVE-2018-18386 CVE-2018-5391
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 4.4.103-6_33 fixes several issues.

   The following security issues were fixed:

   - CVE-2018-5391: Fixed a possible denial of service attack with low rates
     of specially modified packets targeting IP fragment re-assembly. An
     attacker may cause 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 Live Patching 12-SP3:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-2747=1 SUSE-SLE-Live-Patching-12-SP3-2018-2748=1 SUSE-SLE-Live-Patching-12-SP3-2018-2749=1



Package List:

   - SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):

      kgraft-patch-4_4_103-6_33-default-11-2.1
      kgraft-patch-4_4_103-6_33-default-debuginfo-11-2.1
      kgraft-patch-4_4_103-6_38-default-11-2.1
      kgraft-patch-4_4_103-6_38-default-debuginfo-11-2.1
      kgraft-patch-4_4_92-6_30-default-11-2.1
      kgraft-patch-4_4_92-6_30-default-debuginfo-11-2.1


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