SUSE-SU-2018:2482-1: important: Security update for xen

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

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:2482-1
Rating:             important
References:         #1027519 #1091107 #1092631 #1101684 #1102116 
                    
Cross-References:   CVE-2018-3646
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 one vulnerability and has four fixes
   is now available.

Description:

   This update for xen fixes the following issues:

   This security issue was fixed:

   - CVE-2018-3646: Systems with microprocessors utilizing speculative
     execution and address translations may have allowed unauthorized
     disclosure of information residing in the L1 data cache to an attacker
     with local user access with guest OS privilege via a terminal page fault
     and a side-channel analysis (bsc#1091107, bsc#1027519).

   These non-security issues were fixed:

   - bsc#1102116: SSBD is not virtualized for guests
   - bsc#1092631: Preserve the xl dmesg output after boot for determining
     what speculative mitigations have been detected by the hypervisor.
   - bsc#1101684: Make xen able to disable the visibility of the new CPU
     flags.


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 11-SP4:

      zypper in -t patch sdksp4-xen-13749=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-xen-13749=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-13749=1



Package List:

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

      xen-devel-4.4.4_36-61.37.2

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

      xen-kmp-default-4.4.4_36_3.0.101_108.68-61.37.2
      xen-libs-4.4.4_36-61.37.2
      xen-tools-domU-4.4.4_36-61.37.2

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

      xen-4.4.4_36-61.37.2
      xen-doc-html-4.4.4_36-61.37.2
      xen-libs-32bit-4.4.4_36-61.37.2
      xen-tools-4.4.4_36-61.37.2

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

      xen-kmp-pae-4.4.4_36_3.0.101_108.68-61.37.2

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

      xen-debuginfo-4.4.4_36-61.37.2
      xen-debugsource-4.4.4_36-61.37.2


References:

   https://www.suse.com/security/cve/CVE-2018-3646.html
   https://bugzilla.suse.com/1027519
   https://bugzilla.suse.com/1091107
   https://bugzilla.suse.com/1092631
   https://bugzilla.suse.com/1101684
   https://bugzilla.suse.com/1102116