Security update for xen

Announcement ID: SUSE-SU-2022:1375-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2021-20257 ( SUSE ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
  • CVE-2021-20257 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2021-26401 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2021-26401 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0001 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0001 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0002 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-0002 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • CVE-2022-26356 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
  • CVE-2022-26356 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
  • CVE-2022-26357 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2022-26357 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2022-26358 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2022-26358 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2022-26359 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2022-26359 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2022-26360 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2022-26360 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2022-26361 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
  • CVE-2022-26361 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Enterprise High Performance Computing 12 SP2
  • SUSE Linux Enterprise Server 12 SP2
  • SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2

An update that solves 10 vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

  • CVE-2022-26356: Fixed potential race conditions in dirty memory tracking that could cause a denial of service in the host (bsc#1197423).
  • CVE-2022-26357: Fixed a potential race condition in memory cleanup for hosts using VT-d IOMMU hardware, which could lead to a denial of service in the host (bsc#1197425).
  • CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361: Fixed various memory corruption issues for hosts using VT-d or AMD-Vi IOMMU hardware. These could be leveraged by an attacker to cause a denial of service in the host (bsc#1197426).
  • CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: Added BHB speculation issue mitigations (bsc#1196915).
  • CVE-2021-20257: Fixed an infinite loop in the e1000 emulated device, which could cause an excessive CPU consumption in the host (bsc#1182846).

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:

  • SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-1375=1

Package List:

  • SUSE Linux Enterprise Server 12 SP2 BCL 12-SP2 (x86_64)
    • xen-libs-4.7.6_22-43.88.1
    • xen-doc-html-4.7.6_22-43.88.1
    • xen-4.7.6_22-43.88.1
    • xen-libs-debuginfo-32bit-4.7.6_22-43.88.1
    • xen-libs-32bit-4.7.6_22-43.88.1
    • xen-debugsource-4.7.6_22-43.88.1
    • xen-tools-4.7.6_22-43.88.1
    • xen-tools-debuginfo-4.7.6_22-43.88.1
    • xen-tools-domU-debuginfo-4.7.6_22-43.88.1
    • xen-libs-debuginfo-4.7.6_22-43.88.1
    • xen-tools-domU-4.7.6_22-43.88.1

References: