Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2020:3049-1
Rating: important
References: #1177409 #1177412 #1177413 #1177414
Cross-References:CVE-2020-27670 CVE-2020-27671 CVE-2020-27672 CVE-2020-27673
Affected Products:
  • SUSE Linux Enterprise Module for Server Applications 15-SP2
  • SUSE Linux Enterprise Module for Basesystem 15-SP2

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 Linux Enterprise Module for Server Applications 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2020-3049=1
  • SUSE Linux Enterprise Module for Basesystem 15-SP2:
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-3049=1

Package List:

  • SUSE Linux Enterprise Module for Server Applications 15-SP2 (noarch):
    • xen-tools-xendomains-wait-disk-4.13.1_10-3.13.1
  • SUSE Linux Enterprise Module for Server Applications 15-SP2 (x86_64):
    • xen-4.13.1_10-3.13.1
    • xen-debugsource-4.13.1_10-3.13.1
    • xen-devel-4.13.1_10-3.13.1
    • xen-tools-4.13.1_10-3.13.1
    • xen-tools-debuginfo-4.13.1_10-3.13.1
  • SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):
    • xen-debugsource-4.13.1_10-3.13.1
    • xen-libs-4.13.1_10-3.13.1
    • xen-libs-debuginfo-4.13.1_10-3.13.1
    • xen-tools-domU-4.13.1_10-3.13.1
    • xen-tools-domU-debuginfo-4.13.1_10-3.13.1

References: