SUSE Security Update: Security update for xen
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Announcement ID:    SUSE-SU-2020:3088-1
Rating:             important
References:         #1177409 #1177412 #1177413 #1177414 
Cross-References:   CVE-2020-27670 CVE-2020-27671 CVE-2020-27672
                    CVE-2020-27673
Affected Products:
                    SUSE OpenStack Cloud Crowbar 9
                    SUSE OpenStack Cloud 9
                    SUSE Linux Enterprise Server for SAP 12-SP4
                    SUSE Linux Enterprise Server 12-SP4-LTSS
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   An update that fixes four vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   - bsc#1177409 - VUL-0: CVE-2020-27673: xen: x86 PV guest INVLPG-like
     flushes may leave stale TLB entries (XSA-286)
   - bsc#1177412 - VUL-0: CVE-2020-27672: xen: Race condition in Xen mapping
     code (XSA-345)
   - bsc#1177413 - VUL-0: CVE-2020-27671: xen: undue deferral of IOMMU TLB
     flushes (XSA-346)
   - bsc#1177414 - VUL-0: CVE-2020-27670: xen: unsafe AMD IOMMU page table
     updates (XSA-347)


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 OpenStack Cloud Crowbar 9:

      zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2020-3088=1

   - SUSE OpenStack Cloud 9:

      zypper in -t patch SUSE-OpenStack-Cloud-9-2020-3088=1

   - SUSE Linux Enterprise Server for SAP 12-SP4:

      zypper in -t patch SUSE-SLE-SAP-12-SP4-2020-3088=1

   - SUSE Linux Enterprise Server 12-SP4-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2020-3088=1



Package List:

   - SUSE OpenStack Cloud Crowbar 9 (x86_64):

      xen-4.11.4_10-2.39.2
      xen-debugsource-4.11.4_10-2.39.2
      xen-doc-html-4.11.4_10-2.39.2
      xen-libs-32bit-4.11.4_10-2.39.2
      xen-libs-4.11.4_10-2.39.2
      xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
      xen-libs-debuginfo-4.11.4_10-2.39.2
      xen-tools-4.11.4_10-2.39.2
      xen-tools-debuginfo-4.11.4_10-2.39.2
      xen-tools-domU-4.11.4_10-2.39.2
      xen-tools-domU-debuginfo-4.11.4_10-2.39.2

   - SUSE OpenStack Cloud 9 (x86_64):

      xen-4.11.4_10-2.39.2
      xen-debugsource-4.11.4_10-2.39.2
      xen-doc-html-4.11.4_10-2.39.2
      xen-libs-32bit-4.11.4_10-2.39.2
      xen-libs-4.11.4_10-2.39.2
      xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
      xen-libs-debuginfo-4.11.4_10-2.39.2
      xen-tools-4.11.4_10-2.39.2
      xen-tools-debuginfo-4.11.4_10-2.39.2
      xen-tools-domU-4.11.4_10-2.39.2
      xen-tools-domU-debuginfo-4.11.4_10-2.39.2

   - SUSE Linux Enterprise Server for SAP 12-SP4 (x86_64):

      xen-4.11.4_10-2.39.2
      xen-debugsource-4.11.4_10-2.39.2
      xen-doc-html-4.11.4_10-2.39.2
      xen-libs-32bit-4.11.4_10-2.39.2
      xen-libs-4.11.4_10-2.39.2
      xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
      xen-libs-debuginfo-4.11.4_10-2.39.2
      xen-tools-4.11.4_10-2.39.2
      xen-tools-debuginfo-4.11.4_10-2.39.2
      xen-tools-domU-4.11.4_10-2.39.2
      xen-tools-domU-debuginfo-4.11.4_10-2.39.2

   - SUSE Linux Enterprise Server 12-SP4-LTSS (x86_64):

      xen-4.11.4_10-2.39.2
      xen-debugsource-4.11.4_10-2.39.2
      xen-doc-html-4.11.4_10-2.39.2
      xen-libs-32bit-4.11.4_10-2.39.2
      xen-libs-4.11.4_10-2.39.2
      xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
      xen-libs-debuginfo-4.11.4_10-2.39.2
      xen-tools-4.11.4_10-2.39.2
      xen-tools-debuginfo-4.11.4_10-2.39.2
      xen-tools-domU-4.11.4_10-2.39.2
      xen-tools-domU-debuginfo-4.11.4_10-2.39.2


References:

   https://www.suse.com/security/cve/CVE-2020-27670.html
   https://www.suse.com/security/cve/CVE-2020-27671.html
   https://www.suse.com/security/cve/CVE-2020-27672.html
   https://www.suse.com/security/cve/CVE-2020-27673.html
   https://bugzilla.suse.com/1177409
   https://bugzilla.suse.com/1177412
   https://bugzilla.suse.com/1177413
   https://bugzilla.suse.com/1177414