SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2059-1
Rating:             moderate
References:         #1027519 #1087289 #1095242 #1096224 #1097521 
                    #1097522 #1097523 
Cross-References:   CVE-2018-11806 CVE-2018-12891 CVE-2018-12892
                    CVE-2018-12893 CVE-2018-3665
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 12-SP3
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
                    SUSE CaaS Platform ALL
______________________________________________________________________________

   An update that solves 5 vulnerabilities and has two fixes
   is now available.

Description:

   This update for xen fixes the following issues:

   Security issues fixed:

   - CVE-2018-3665: Fix Lazy FP Save/Restore issue (XSA-267) (bsc#1095242).
   - CVE-2018-12891: Fix possible Denial of Service (DoS) via certain PV MMU
     operations that affect the entire host (XSA-264) (bsc#1097521).
   - CVE-2018-12892: Fix libxl to honour the readonly flag on HVM emulated
     SCSI disks (XSA-266) (bsc#1097523).
   - CVE-2018-12893: Fix crash/Denial of Service (DoS) via safety check
     (XSA-265) (bsc#1097522).
   - CVE-2018-11806: Fix heap buffer overflow while reassembling fragmented
     datagrams (bsc#1096224).

   Bug fixes:

   - bsc#1027519: Add upstream patches from January.
   - bsc#1087289: Fix xen scheduler crash.


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 Software Development Kit 12-SP3:

      zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-1388=1

   - SUSE Linux Enterprise Server 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-1388=1

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-1388=1

   - SUSE CaaS Platform ALL:

      To install this update, use the SUSE CaaS Platform Velum dashboard.
      It will inform you if it detects new updates and let you then trigger
      updating of the complete cluster in a controlled way.



Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 x86_64):

      xen-debugsource-4.9.2_08-3.35.2
      xen-devel-4.9.2_08-3.35.2

   - SUSE Linux Enterprise Server 12-SP3 (x86_64):

      xen-4.9.2_08-3.35.2
      xen-debugsource-4.9.2_08-3.35.2
      xen-doc-html-4.9.2_08-3.35.2
      xen-libs-32bit-4.9.2_08-3.35.2
      xen-libs-4.9.2_08-3.35.2
      xen-libs-debuginfo-32bit-4.9.2_08-3.35.2
      xen-libs-debuginfo-4.9.2_08-3.35.2
      xen-tools-4.9.2_08-3.35.2
      xen-tools-debuginfo-4.9.2_08-3.35.2
      xen-tools-domU-4.9.2_08-3.35.2
      xen-tools-domU-debuginfo-4.9.2_08-3.35.2

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      xen-4.9.2_08-3.35.2
      xen-debugsource-4.9.2_08-3.35.2
      xen-libs-32bit-4.9.2_08-3.35.2
      xen-libs-4.9.2_08-3.35.2
      xen-libs-debuginfo-32bit-4.9.2_08-3.35.2
      xen-libs-debuginfo-4.9.2_08-3.35.2

   - SUSE CaaS Platform ALL (x86_64):

      xen-debugsource-4.9.2_08-3.35.2
      xen-libs-4.9.2_08-3.35.2
      xen-libs-debuginfo-4.9.2_08-3.35.2
      xen-tools-domU-4.9.2_08-3.35.2
      xen-tools-domU-debuginfo-4.9.2_08-3.35.2


References:

   https://www.suse.com/security/cve/CVE-2018-11806.html
   https://www.suse.com/security/cve/CVE-2018-12891.html
   https://www.suse.com/security/cve/CVE-2018-12892.html
   https://www.suse.com/security/cve/CVE-2018-12893.html
   https://www.suse.com/security/cve/CVE-2018-3665.html
   https://bugzilla.suse.com/1027519
   https://bugzilla.suse.com/1087289
   https://bugzilla.suse.com/1095242
   https://bugzilla.suse.com/1096224
   https://bugzilla.suse.com/1097521
   https://bugzilla.suse.com/1097522
   https://bugzilla.suse.com/1097523