Security update for xen

Announcement ID:	SUSE-SU-2022:3728-1
Rating:	important
References:	bsc#1185104 bsc#1200762 bsc#1203806 bsc#1203807
Cross-References:	CVE-2021-28689 CVE-2022-26365 CVE-2022-33740 CVE-2022-33741 CVE-2022-33742 CVE-2022-33746 CVE-2022-33748
CVSS scores:	CVE-2021-28689 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2021-28689 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-26365 ( SUSE ): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H CVE-2022-26365 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2022-33740 ( SUSE ): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H CVE-2022-33740 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2022-33741 ( SUSE ): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H CVE-2022-33741 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2022-33742 ( SUSE ): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H CVE-2022-33742 ( NVD ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVE-2022-33746 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2022-33746 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2022-33748 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H CVE-2022-33748 ( NVD ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/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-2022-26365: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33740: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33741: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33742: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
• CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104).
• CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).

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-SP5-2022-3728=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-3728=1
• SUSE Linux Enterprise High Performance Computing 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-3728=1
• SUSE Linux Enterprise Server 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-3728=1

Package List:

• SUSE Linux Enterprise Software Development Kit 12 SP5 (aarch64 x86_64)
  • xen-debugsource-4.12.4_28-3.77.1
  • xen-devel-4.12.4_28-3.77.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (x86_64)
  • xen-libs-32bit-4.12.4_28-3.77.1
  • xen-tools-domU-debuginfo-4.12.4_28-3.77.1
  • xen-doc-html-4.12.4_28-3.77.1
  • xen-libs-debuginfo-4.12.4_28-3.77.1
  • xen-tools-domU-4.12.4_28-3.77.1
  • xen-tools-4.12.4_28-3.77.1
  • xen-tools-debuginfo-4.12.4_28-3.77.1
  • xen-4.12.4_28-3.77.1
  • xen-libs-debuginfo-32bit-4.12.4_28-3.77.1
  • xen-debugsource-4.12.4_28-3.77.1
  • xen-libs-4.12.4_28-3.77.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (x86_64)
  • xen-libs-32bit-4.12.4_28-3.77.1
  • xen-tools-domU-debuginfo-4.12.4_28-3.77.1
  • xen-doc-html-4.12.4_28-3.77.1
  • xen-libs-debuginfo-4.12.4_28-3.77.1
  • xen-tools-domU-4.12.4_28-3.77.1
  • xen-tools-4.12.4_28-3.77.1
  • xen-tools-debuginfo-4.12.4_28-3.77.1
  • xen-4.12.4_28-3.77.1
  • xen-libs-debuginfo-32bit-4.12.4_28-3.77.1
  • xen-debugsource-4.12.4_28-3.77.1
  • xen-libs-4.12.4_28-3.77.1
• SUSE Linux Enterprise Server 12 SP5 (x86_64)
  • xen-libs-32bit-4.12.4_28-3.77.1
  • xen-tools-domU-debuginfo-4.12.4_28-3.77.1
  • xen-doc-html-4.12.4_28-3.77.1
  • xen-libs-debuginfo-4.12.4_28-3.77.1
  • xen-tools-domU-4.12.4_28-3.77.1
  • xen-tools-4.12.4_28-3.77.1
  • xen-tools-debuginfo-4.12.4_28-3.77.1
  • xen-4.12.4_28-3.77.1
  • xen-libs-debuginfo-32bit-4.12.4_28-3.77.1
  • xen-debugsource-4.12.4_28-3.77.1
  • xen-libs-4.12.4_28-3.77.1

References:

• https://www.suse.com/security/cve/CVE-2021-28689.html
• https://www.suse.com/security/cve/CVE-2022-26365.html
• https://www.suse.com/security/cve/CVE-2022-33740.html
• https://www.suse.com/security/cve/CVE-2022-33741.html
• https://www.suse.com/security/cve/CVE-2022-33742.html
• https://www.suse.com/security/cve/CVE-2022-33746.html
• https://www.suse.com/security/cve/CVE-2022-33748.html
• https://bugzilla.suse.com/show_bug.cgi?id=1185104
• https://bugzilla.suse.com/show_bug.cgi?id=1200762
• https://bugzilla.suse.com/show_bug.cgi?id=1203806
• https://bugzilla.suse.com/show_bug.cgi?id=1203807