SUSE-SU-2017:1145-1: important: Security update for xen

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

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:1145-1
Rating:             important
References:         #1028655 #1029827 #1030144 #1034843 #1034844 
                    #1034845 #1034994 #1035483 
Cross-References:   CVE-2016-9603 CVE-2017-7718 CVE-2017-7980
                   
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 11-SP4
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

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

Description:


   This update for xen fixes several issues.

   These security issues were fixed:

   - A malicious 64-bit PV guest may be able to access all of system memory,
     allowing for all of privilege escalation, host crashes, and information
     leaks by placing a IRET hypercall in the middle of a multicall batch
     (XSA-213, bsc#1034843)
   - A malicious pair of guests may be able to access all of system memory,
     allowing for all of privilege escalation, host crashes, and information
     leaks because of a missing check when transfering pages via
     GNTTABOP_transfer (XSA-214, bsc#1034844).
   - CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS
     privileged users to cause a denial of service (out-of-bounds read and
     QEMU process crash) via vectors related to copying VGA data via the
     cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions
     (bsc#1034994).
   - CVE-2016-9603: A privileged user within the guest VM could have caused a
     heap overflow in the device model process, potentially escalating their
     privileges to that of the device model process (bsc#1028655)

   These non-security issues were fixed:

   - bsc#1029827: Additional xenstore patch


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 Software Development Kit 11-SP4:

      zypper in -t patch sdksp4-xen-13084=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-xen-13084=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-13084=1

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


Package List:

   - SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

      xen-devel-4.4.4_18-57.1

   - SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

      xen-kmp-default-4.4.4_18_3.0.101_97-57.1
      xen-libs-4.4.4_18-57.1
      xen-tools-domU-4.4.4_18-57.1

   - SUSE Linux Enterprise Server 11-SP4 (x86_64):

      xen-4.4.4_18-57.1
      xen-doc-html-4.4.4_18-57.1
      xen-libs-32bit-4.4.4_18-57.1
      xen-tools-4.4.4_18-57.1

   - SUSE Linux Enterprise Server 11-SP4 (i586):

      xen-kmp-pae-4.4.4_18_3.0.101_97-57.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      xen-debuginfo-4.4.4_18-57.1
      xen-debugsource-4.4.4_18-57.1


References:

   https://www.suse.com/security/cve/CVE-2016-9603.html
   https://www.suse.com/security/cve/CVE-2017-7718.html
   https://www.suse.com/security/cve/CVE-2017-7980.html
   https://bugzilla.suse.com/1028655
   https://bugzilla.suse.com/1029827
   https://bugzilla.suse.com/1030144
   https://bugzilla.suse.com/1034843
   https://bugzilla.suse.com/1034844
   https://bugzilla.suse.com/1034845
   https://bugzilla.suse.com/1034994
   https://bugzilla.suse.com/1035483