Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2020:1632-1
Rating: important
References: #1027519 #1172205
Cross-References:CVE-2020-0543
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP4
  • SUSE Linux Enterprise Server 12-SP4

An update that solves one vulnerability and has one errata is now available.

Description:

This update for xen to version 4.11.4 fixes the following issues:

  • CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or "CrossTalk" (bsc#1172205).

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 12-SP4:
    zypper in -t patch SUSE-SLE-SDK-12-SP4-2020-1632=1
  • SUSE Linux Enterprise Server 12-SP4:
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1632=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 12-SP4 (aarch64 x86_64):
    • xen-debugsource-4.11.4_02-2.26.1
    • xen-devel-4.11.4_02-2.26.1
  • SUSE Linux Enterprise Server 12-SP4 (x86_64):
    • xen-4.11.4_02-2.26.1
    • xen-debugsource-4.11.4_02-2.26.1
    • xen-doc-html-4.11.4_02-2.26.1
    • xen-libs-32bit-4.11.4_02-2.26.1
    • xen-libs-4.11.4_02-2.26.1
    • xen-libs-debuginfo-32bit-4.11.4_02-2.26.1
    • xen-libs-debuginfo-4.11.4_02-2.26.1
    • xen-tools-4.11.4_02-2.26.1
    • xen-tools-debuginfo-4.11.4_02-2.26.1
    • xen-tools-domU-4.11.4_02-2.26.1
    • xen-tools-domU-debuginfo-4.11.4_02-2.26.1

References: