Security update for xen

Announcement ID:	SUSE-SU-2022:2557-1
Rating:	important
References:	bsc#1200549 bsc#1201394 bsc#1201469
Cross-References:	CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-23816 CVE-2022-23825 CVE-2022-29900 CVE-2022-33745
CVSS scores:	CVE-2022-21123 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVE-2022-21123 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-21125 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-21125 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-21166 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-21166 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-23816 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-23825 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-23825 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-29900 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-29900 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-33745 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2022-33745 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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 seven vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2022-21123, CVE-2022-21125, CVE-2022-21166: Fixed MMIO stale data vulnerabilities on x86 (XSA-404) (bsc#1200549).
• CVE-2022-33745: Fixed insufficient TLB flush for x86 PV guests in shadow mode (XSA-408) (bsc#1201394).
• CVE-2022-23816, CVE-2022-23825, CVE-2022-29900: Fixed RETBLEED vulnerability, arbitrary speculative code execution with return instructions (XSA-407) (bsc#1201469).

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-SP5-2022-2557=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-2557=1
• SUSE Linux Enterprise High Performance Computing 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-2557=1
• SUSE Linux Enterprise Server 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-2557=1

Package List:

• SUSE Linux Enterprise Software Development Kit 12 SP5 (aarch64 x86_64)
  • xen-debugsource-4.12.4_26-3.74.1
  • xen-devel-4.12.4_26-3.74.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (x86_64)
  • xen-libs-debuginfo-32bit-4.12.4_26-3.74.1
  • xen-tools-domU-4.12.4_26-3.74.1
  • xen-tools-domU-debuginfo-4.12.4_26-3.74.1
  • xen-doc-html-4.12.4_26-3.74.1
  • xen-4.12.4_26-3.74.1
  • xen-debugsource-4.12.4_26-3.74.1
  • xen-libs-debuginfo-4.12.4_26-3.74.1
  • xen-tools-debuginfo-4.12.4_26-3.74.1
  • xen-libs-4.12.4_26-3.74.1
  • xen-tools-4.12.4_26-3.74.1
  • xen-libs-32bit-4.12.4_26-3.74.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (x86_64)
  • xen-libs-debuginfo-32bit-4.12.4_26-3.74.1
  • xen-tools-domU-4.12.4_26-3.74.1
  • xen-tools-domU-debuginfo-4.12.4_26-3.74.1
  • xen-doc-html-4.12.4_26-3.74.1
  • xen-4.12.4_26-3.74.1
  • xen-debugsource-4.12.4_26-3.74.1
  • xen-libs-debuginfo-4.12.4_26-3.74.1
  • xen-tools-debuginfo-4.12.4_26-3.74.1
  • xen-libs-4.12.4_26-3.74.1
  • xen-tools-4.12.4_26-3.74.1
  • xen-libs-32bit-4.12.4_26-3.74.1
• SUSE Linux Enterprise Server 12 SP5 (x86_64)
  • xen-libs-debuginfo-32bit-4.12.4_26-3.74.1
  • xen-tools-domU-4.12.4_26-3.74.1
  • xen-tools-domU-debuginfo-4.12.4_26-3.74.1
  • xen-doc-html-4.12.4_26-3.74.1
  • xen-4.12.4_26-3.74.1
  • xen-debugsource-4.12.4_26-3.74.1
  • xen-libs-debuginfo-4.12.4_26-3.74.1
  • xen-tools-debuginfo-4.12.4_26-3.74.1
  • xen-libs-4.12.4_26-3.74.1
  • xen-tools-4.12.4_26-3.74.1
  • xen-libs-32bit-4.12.4_26-3.74.1

References:

• https://www.suse.com/security/cve/CVE-2022-21123.html
• https://www.suse.com/security/cve/CVE-2022-21125.html
• https://www.suse.com/security/cve/CVE-2022-21166.html
• https://www.suse.com/security/cve/CVE-2022-23816.html
• https://www.suse.com/security/cve/CVE-2022-23825.html
• https://www.suse.com/security/cve/CVE-2022-29900.html
• https://www.suse.com/security/cve/CVE-2022-33745.html
• https://bugzilla.suse.com/show_bug.cgi?id=1200549
• https://bugzilla.suse.com/show_bug.cgi?id=1201394
• https://bugzilla.suse.com/show_bug.cgi?id=1201469