Security update for xen

Announcement ID: SUSE-SU-2021:3888-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2021-28702 ( SUSE ): 6.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:H
  • CVE-2021-28702 ( NVD ): 7.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
  • CVE-2021-28704 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28704 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2021-28705 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28705 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2021-28706 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28706 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • CVE-2021-28707 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28707 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2021-28708 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28708 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2021-28709 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2021-28709 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • Basesystem Module 15-SP2
  • Server Applications Module 15-SP2
  • SUSE Linux Enterprise Desktop 15 SP2
  • SUSE Linux Enterprise High Performance Computing 15 SP2
  • SUSE Linux Enterprise Micro 5.0
  • SUSE Linux Enterprise Real Time 15 SP2
  • SUSE Linux Enterprise Server 15 SP2
  • SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2
  • SUSE Linux Enterprise Server for SAP Applications 15 SP2
  • SUSE Manager Proxy 4.1
  • SUSE Manager Retail Branch Server 4.1
  • SUSE Manager Server 4.1

An update that solves seven vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

  • CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly (XSA-386) (bsc#1191363).
  • CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).
  • CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559).

  • CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).

  • Update to Xen 4.13.4 bug fix release (bsc#1027519).

Special Instructions and Notes:

  • Please reboot the system after installing this update.

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-SP2
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-3888=1
  • Server Applications Module 15-SP2
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-3888=1
  • SUSE Linux Enterprise Micro 5.0
    zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-3888=1

Package List:

  • Basesystem Module 15-SP2 (x86_64)
    • xen-tools-domU-debuginfo-4.13.4_02-3.40.1
    • xen-libs-debuginfo-4.13.4_02-3.40.1
    • xen-tools-domU-4.13.4_02-3.40.1
    • xen-debugsource-4.13.4_02-3.40.1
    • xen-libs-4.13.4_02-3.40.1
  • Server Applications Module 15-SP2 (x86_64)
    • xen-tools-debuginfo-4.13.4_02-3.40.1
    • xen-4.13.4_02-3.40.1
    • xen-debugsource-4.13.4_02-3.40.1
    • xen-devel-4.13.4_02-3.40.1
    • xen-tools-4.13.4_02-3.40.1
  • Server Applications Module 15-SP2 (noarch)
    • xen-tools-xendomains-wait-disk-4.13.4_02-3.40.1
  • SUSE Linux Enterprise Micro 5.0 (x86_64)
    • xen-libs-4.13.4_02-3.40.1
    • xen-libs-debuginfo-4.13.4_02-3.40.1
    • xen-debugsource-4.13.4_02-3.40.1

References: