Security update for xen

Announcement ID:	SUSE-SU-2020:3088-1
Rating:	important
References:	bsc#1177409 bsc#1177412 bsc#1177413 bsc#1177414
Cross-References:	CVE-2020-27670 CVE-2020-27671 CVE-2020-27672 CVE-2020-27673
CVSS scores:	CVE-2020-27670 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27670 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27671 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27671 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27672 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-27672 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-27673 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-27673 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9

An update that solves four vulnerabilities can now be installed.

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 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 9
  zypper in -t patch SUSE-OpenStack-Cloud-9-2020-3088=1
• SUSE OpenStack Cloud Crowbar 9
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2020-3088=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-SAP-12-SP4-2020-3088=1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-ESPOS-2020-3088=1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2020-3088=1

Package List:

• SUSE OpenStack Cloud 9 (x86_64)
  • xen-libs-debuginfo-4.11.4_10-2.39.2
  • xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
  • xen-libs-32bit-4.11.4_10-2.39.2
  • xen-4.11.4_10-2.39.2
  • xen-libs-4.11.4_10-2.39.2
  • xen-tools-debuginfo-4.11.4_10-2.39.2
  • xen-tools-domU-debuginfo-4.11.4_10-2.39.2
  • xen-tools-4.11.4_10-2.39.2
  • xen-debugsource-4.11.4_10-2.39.2
  • xen-tools-domU-4.11.4_10-2.39.2
  • xen-doc-html-4.11.4_10-2.39.2
• SUSE OpenStack Cloud Crowbar 9 (x86_64)
  • xen-libs-debuginfo-4.11.4_10-2.39.2
  • xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
  • xen-libs-32bit-4.11.4_10-2.39.2
  • xen-4.11.4_10-2.39.2
  • xen-libs-4.11.4_10-2.39.2
  • xen-tools-debuginfo-4.11.4_10-2.39.2
  • xen-tools-domU-debuginfo-4.11.4_10-2.39.2
  • xen-tools-4.11.4_10-2.39.2
  • xen-debugsource-4.11.4_10-2.39.2
  • xen-tools-domU-4.11.4_10-2.39.2
  • xen-doc-html-4.11.4_10-2.39.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • xen-libs-debuginfo-4.11.4_10-2.39.2
  • xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
  • xen-libs-32bit-4.11.4_10-2.39.2
  • xen-4.11.4_10-2.39.2
  • xen-libs-4.11.4_10-2.39.2
  • xen-tools-debuginfo-4.11.4_10-2.39.2
  • xen-tools-domU-debuginfo-4.11.4_10-2.39.2
  • xen-tools-4.11.4_10-2.39.2
  • xen-debugsource-4.11.4_10-2.39.2
  • xen-tools-domU-4.11.4_10-2.39.2
  • xen-doc-html-4.11.4_10-2.39.2
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (x86_64)
  • xen-libs-debuginfo-4.11.4_10-2.39.2
  • xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
  • xen-libs-32bit-4.11.4_10-2.39.2
  • xen-4.11.4_10-2.39.2
  • xen-libs-4.11.4_10-2.39.2
  • xen-tools-debuginfo-4.11.4_10-2.39.2
  • xen-tools-domU-debuginfo-4.11.4_10-2.39.2
  • xen-tools-4.11.4_10-2.39.2
  • xen-debugsource-4.11.4_10-2.39.2
  • xen-tools-domU-4.11.4_10-2.39.2
  • xen-doc-html-4.11.4_10-2.39.2
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (x86_64)
  • xen-libs-debuginfo-4.11.4_10-2.39.2
  • xen-libs-debuginfo-32bit-4.11.4_10-2.39.2
  • xen-libs-32bit-4.11.4_10-2.39.2
  • xen-4.11.4_10-2.39.2
  • xen-libs-4.11.4_10-2.39.2
  • xen-tools-debuginfo-4.11.4_10-2.39.2
  • xen-tools-domU-debuginfo-4.11.4_10-2.39.2
  • xen-tools-4.11.4_10-2.39.2
  • xen-debugsource-4.11.4_10-2.39.2
  • xen-tools-domU-4.11.4_10-2.39.2
  • xen-doc-html-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/show_bug.cgi?id=1177409
• https://bugzilla.suse.com/show_bug.cgi?id=1177412
• https://bugzilla.suse.com/show_bug.cgi?id=1177413
• https://bugzilla.suse.com/show_bug.cgi?id=1177414