Security update for xen

Announcement ID:	SUSE-SU-2022:0939-1
Rating:	important
References:	bsc#1196915
Cross-References:	CVE-2021-26401 CVE-2022-0001 CVE-2022-0002
CVSS scores:	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
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE Linux Enterprise Software Development Kit 12 SP5

An update that solves three vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

Transient execution side-channel attacks attacking the Branch History Buffer (BHB), named "Branch Target Injection" and "Intra-Mode Branch History Injection" are now mitigated.

• CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: BHB speculation issues (bsc#1196915).

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 Software Development Kit 12 SP5
  zypper in -t patch SUSE-SLE-SDK-12-SP5-2022-939=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-939=1
• SUSE Linux Enterprise High Performance Computing 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-939=1
• SUSE Linux Enterprise Server 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-939=1

Package List:

• SUSE Linux Enterprise Software Development Kit 12 SP5 (aarch64 x86_64)
  • xen-debugsource-4.12.4_20-3.61.1
  • xen-devel-4.12.4_20-3.61.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (x86_64)
  • xen-debugsource-4.12.4_20-3.61.1
  • xen-doc-html-4.12.4_20-3.61.1
  • xen-libs-debuginfo-4.12.4_20-3.61.1
  • xen-libs-32bit-4.12.4_20-3.61.1
  • xen-tools-debuginfo-4.12.4_20-3.61.1
  • xen-libs-4.12.4_20-3.61.1
  • xen-tools-4.12.4_20-3.61.1
  • xen-tools-domU-debuginfo-4.12.4_20-3.61.1
  • xen-4.12.4_20-3.61.1
  • xen-tools-domU-4.12.4_20-3.61.1
  • xen-libs-debuginfo-32bit-4.12.4_20-3.61.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (x86_64)
  • xen-debugsource-4.12.4_20-3.61.1
  • xen-doc-html-4.12.4_20-3.61.1
  • xen-libs-debuginfo-4.12.4_20-3.61.1
  • xen-libs-32bit-4.12.4_20-3.61.1
  • xen-tools-debuginfo-4.12.4_20-3.61.1
  • xen-libs-4.12.4_20-3.61.1
  • xen-tools-4.12.4_20-3.61.1
  • xen-tools-domU-debuginfo-4.12.4_20-3.61.1
  • xen-4.12.4_20-3.61.1
  • xen-tools-domU-4.12.4_20-3.61.1
  • xen-libs-debuginfo-32bit-4.12.4_20-3.61.1
• SUSE Linux Enterprise Server 12 SP5 (x86_64)
  • xen-debugsource-4.12.4_20-3.61.1
  • xen-doc-html-4.12.4_20-3.61.1
  • xen-libs-debuginfo-4.12.4_20-3.61.1
  • xen-libs-32bit-4.12.4_20-3.61.1
  • xen-tools-debuginfo-4.12.4_20-3.61.1
  • xen-libs-4.12.4_20-3.61.1
  • xen-tools-4.12.4_20-3.61.1
  • xen-tools-domU-debuginfo-4.12.4_20-3.61.1
  • xen-4.12.4_20-3.61.1
  • xen-tools-domU-4.12.4_20-3.61.1
  • xen-libs-debuginfo-32bit-4.12.4_20-3.61.1

References:

• https://www.suse.com/security/cve/CVE-2021-26401.html
• https://www.suse.com/security/cve/CVE-2022-0001.html
• https://www.suse.com/security/cve/CVE-2022-0002.html
• https://bugzilla.suse.com/show_bug.cgi?id=1196915