SUSE Security Update: Security update for xen
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Announcement ID:    SUSE-SU-2020:1889-1
Rating:             important
References:         #1027519 #1172205 #1173376 #1173377 #1173378 
                    #1173380 
Cross-References:   CVE-2020-0543 CVE-2020-15563 CVE-2020-15565
                    CVE-2020-15566 CVE-2020-15567
Affected Products:
                    SUSE Linux Enterprise Module for Server Applications 15-SP1
                    SUSE Linux Enterprise Module for Basesystem 15-SP1
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   An update that solves 5 vulnerabilities and has one errata
   is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2020-15563: Fixed inverted code paths in x86 dirty VRAM tracking
     (bsc#1173377).
   - CVE-2020-15565: Fixed insufficient cache write-back under VT-d
     (bsc#1173378).
   - CVE-2020-15566: Fixed incorrect error handling in event channel port
     allocation (bsc#1173376).
   - CVE-2020-15567: Fixed non-atomic modification of live EPT PTE
     (bsc#1173380).
   - CVE-2020-0543: Special Register Buffer Data Sampling (SRBDS) aka
     "CrossTalk" (bsc#1172205).

   Additional upstream bug fixes (bsc#1027519)


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 Server Applications 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1889=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1889=1



Package List:

   - SUSE Linux Enterprise Module for Server Applications 15-SP1 (x86_64):

      xen-4.12.3_04-3.22.1
      xen-debugsource-4.12.3_04-3.22.1
      xen-devel-4.12.3_04-3.22.1
      xen-tools-4.12.3_04-3.22.1
      xen-tools-debuginfo-4.12.3_04-3.22.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP1 (x86_64):

      xen-debugsource-4.12.3_04-3.22.1
      xen-libs-4.12.3_04-3.22.1
      xen-libs-debuginfo-4.12.3_04-3.22.1
      xen-tools-domU-4.12.3_04-3.22.1
      xen-tools-domU-debuginfo-4.12.3_04-3.22.1


References:

   https://www.suse.com/security/cve/CVE-2020-0543.html
   https://www.suse.com/security/cve/CVE-2020-15563.html
   https://www.suse.com/security/cve/CVE-2020-15565.html
   https://www.suse.com/security/cve/CVE-2020-15566.html
   https://www.suse.com/security/cve/CVE-2020-15567.html
   https://bugzilla.suse.com/1027519
   https://bugzilla.suse.com/1172205
   https://bugzilla.suse.com/1173376
   https://bugzilla.suse.com/1173377
   https://bugzilla.suse.com/1173378
   https://bugzilla.suse.com/1173380

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