Security update for xen

Announcement ID:	SUSE-SU-2022:3665-1
Rating:	important
References:	bsc#1027519 bsc#1167608 bsc#1185104 bsc#1197081 bsc#1200762 bsc#1201394 bsc#1201631 bsc#1203806 bsc#1203807
Cross-References:	CVE-2021-28689 CVE-2022-26365 CVE-2022-33740 CVE-2022-33741 CVE-2022-33742 CVE-2022-33745 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-2022-33745 ( 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 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:	Basesystem Module 15-SP3 openSUSE Leap 15.3 Server Applications Module 15-SP3 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2

An update that solves eight vulnerabilities and has one security fix can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
• CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).
• 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-2022-33745: Fixed an insufficient TLB flush for x86 PV guests in shadow mode (bsc#1201394).
• CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104).

Bugfixes:

• Fixed logic error in built-in default of max_event_channels (bsc#1167608, bsc#1201631).
• Fixed issue where dom0 fails to boot with constrained vcpus and nodes (bsc#1197081).
• Included upstream bugfixes (bsc#1027519).

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:

• openSUSE Leap 15.3
  zypper in -t patch SUSE-2022-3665=1
• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-3665=1
• Server Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-3665=1
• SUSE Linux Enterprise Micro 5.1
  zypper in -t patch SUSE-SUSE-MicroOS-5.1-2022-3665=1
• SUSE Linux Enterprise Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-3665=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-3665=1

Package List:

• openSUSE Leap 15.3 (aarch64 x86_64 i586)
  • xen-libs-debuginfo-4.14.5_06-150300.3.35.1
  • xen-tools-domU-debuginfo-4.14.5_06-150300.3.35.1
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-devel-4.14.5_06-150300.3.35.1
  • xen-libs-4.14.5_06-150300.3.35.1
  • xen-tools-domU-4.14.5_06-150300.3.35.1
• openSUSE Leap 15.3 (x86_64)
  • xen-libs-32bit-debuginfo-4.14.5_06-150300.3.35.1
  • xen-libs-32bit-4.14.5_06-150300.3.35.1
• openSUSE Leap 15.3 (aarch64 x86_64)
  • xen-4.14.5_06-150300.3.35.1
  • xen-doc-html-4.14.5_06-150300.3.35.1
  • xen-tools-debuginfo-4.14.5_06-150300.3.35.1
  • xen-tools-4.14.5_06-150300.3.35.1
• openSUSE Leap 15.3 (noarch)
  • xen-tools-xendomains-wait-disk-4.14.5_06-150300.3.35.1
• openSUSE Leap 15.3 (aarch64_ilp32)
  • xen-libs-64bit-4.14.5_06-150300.3.35.1
  • xen-libs-64bit-debuginfo-4.14.5_06-150300.3.35.1
• Basesystem Module 15-SP3 (x86_64)
  • xen-libs-debuginfo-4.14.5_06-150300.3.35.1
  • xen-tools-domU-debuginfo-4.14.5_06-150300.3.35.1
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-libs-4.14.5_06-150300.3.35.1
  • xen-tools-domU-4.14.5_06-150300.3.35.1
• Server Applications Module 15-SP3 (x86_64)
  • xen-tools-debuginfo-4.14.5_06-150300.3.35.1
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-tools-4.14.5_06-150300.3.35.1
  • xen-4.14.5_06-150300.3.35.1
  • xen-devel-4.14.5_06-150300.3.35.1
• Server Applications Module 15-SP3 (noarch)
  • xen-tools-xendomains-wait-disk-4.14.5_06-150300.3.35.1
• SUSE Linux Enterprise Micro 5.1 (x86_64)
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-libs-debuginfo-4.14.5_06-150300.3.35.1
  • xen-libs-4.14.5_06-150300.3.35.1
• SUSE Linux Enterprise Micro 5.2 (x86_64)
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-libs-debuginfo-4.14.5_06-150300.3.35.1
  • xen-libs-4.14.5_06-150300.3.35.1
• SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
  • xen-debugsource-4.14.5_06-150300.3.35.1
  • xen-libs-debuginfo-4.14.5_06-150300.3.35.1
  • xen-libs-4.14.5_06-150300.3.35.1

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-2022-33745.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=1027519
• https://bugzilla.suse.com/show_bug.cgi?id=1167608
• https://bugzilla.suse.com/show_bug.cgi?id=1185104
• https://bugzilla.suse.com/show_bug.cgi?id=1197081
• https://bugzilla.suse.com/show_bug.cgi?id=1200762
• https://bugzilla.suse.com/show_bug.cgi?id=1201394
• https://bugzilla.suse.com/show_bug.cgi?id=1201631
• https://bugzilla.suse.com/show_bug.cgi?id=1203806
• https://bugzilla.suse.com/show_bug.cgi?id=1203807