Security update for xen

Announcement ID: SUSE-SU-2020:1609-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-0543 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2020-0543 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Products:
  • Basesystem Module 15-SP1
  • Server Applications Module 15-SP1
  • SUSE Linux Enterprise Desktop 15 SP1
  • SUSE Linux Enterprise High Performance Computing 15 SP1
  • SUSE Linux Enterprise Real Time 15 SP1
  • SUSE Linux Enterprise Server 15 SP1
  • SUSE Linux Enterprise Server 15 SP1 Business Critical Linux 15-SP1
  • SUSE Linux Enterprise Server for SAP Applications 15 SP1
  • SUSE Manager Proxy 4.0
  • SUSE Manager Retail Branch Server 4.0
  • SUSE Manager Server 4.0

An update that solves one vulnerability and has three security fixes can now be installed.

Description:

This update for xen to version 4.12.3 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).
  • Added support for new 64bit libxl memory API (bsc#1167007 and bsc#1157490).

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:

  • Basesystem Module 15-SP1
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-1609=1
  • Server Applications Module 15-SP1
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP1-2020-1609=1

Package List:

  • Basesystem Module 15-SP1 (x86_64)
    • xen-tools-domU-debuginfo-4.12.3_02-3.18.1
    • xen-libs-4.12.3_02-3.18.1
    • xen-libs-debuginfo-4.12.3_02-3.18.1
    • xen-tools-domU-4.12.3_02-3.18.1
    • xen-debugsource-4.12.3_02-3.18.1
  • Server Applications Module 15-SP1 (x86_64)
    • xen-tools-4.12.3_02-3.18.1
    • xen-devel-4.12.3_02-3.18.1
    • xen-4.12.3_02-3.18.1
    • xen-tools-debuginfo-4.12.3_02-3.18.1
    • xen-debugsource-4.12.3_02-3.18.1

References: