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A xen security update has been released for SUSE Linux Enterprise, openSUSE Leap 15.3/15.4, and Leap Micro 5.2.



SUSE-SU-2022:3665-1: important: Security update for xen


SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID: SUSE-SU-2022:3665-1
Rating: important
References: #1027519 #1167608 #1185104 #1197081 #1200762 #1201394 #1201631 #1203806 #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 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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-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-2022-26365 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33740 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVE-2022-33740 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33741 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVE-2022-33741 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33742 (NVD) : 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVE-2022-33742 (SUSE): 6.6 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVE-2022-33745 (NVD) : 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVE-2022-33745 (SUSE): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2022-33746 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVE-2022-33746 (SUSE): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
CVE-2022-33748 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/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

Affected Products:
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 Module for Basesystem 15-SP3 SUSE Linux Enterprise Module for Server Applications 15-SP3
SUSE Linux Enterprise Server 15-SP3
SUSE Linux Enterprise Server for SAP Applications 15-SP3SUSE Linux Enterprise Storage 7.1
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
openSUSE Leap 15.3
openSUSE Leap Micro 5.2
______________________________________________________________________________

An update that solves 8 vulnerabilities and has one errata is now available.

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 Security 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 Micro 5.2:

zypper in -t patch openSUSE-Leap-Micro-5.2-2022-3665=1
- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2022-3665=1

- SUSE Linux Enterprise Module for Server Applications 15-SP3:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-3665=1

- SUSE Linux Enterprise Module for Basesystem 15-SP3:

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2022-3665=1
- SUSE Linux Enterprise Micro 5.2:

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2022-3665=1

- SUSE Linux Enterprise Micro 5.1:

zypper in -t patch SUSE-SUSE-MicroOS-5.1-2022-3665=1


Package List:

- openSUSE Leap Micro 5.2 (x86_64):

xen-debugsource-4.14.5_06-150300.3.35.1
xen-libs-4.14.5_06-150300.3.35.1
xen-libs-debuginfo-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-debugsource-4.14.5_06-150300.3.35.1
xen-devel-4.14.5_06-150300.3.35.1
xen-doc-html-4.14.5_06-150300.3.35.1
xen-libs-4.14.5_06-150300.3.35.1
xen-libs-debuginfo-4.14.5_06-150300.3.35.1
xen-tools-4.14.5_06-150300.3.35.1
xen-tools-debuginfo-4.14.5_06-150300.3.35.1
xen-tools-domU-4.14.5_06-150300.3.35.1
xen-tools-domU-debuginfo-4.14.5_06-150300.3.35.1

- openSUSE Leap 15.3 (x86_64):

xen-libs-32bit-4.14.5_06-150300.3.35.1
xen-libs-32bit-debuginfo-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
- SUSE Linux Enterprise Module for Server Applications 15-SP3 (x86_64):
xen-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-tools-4.14.5_06-150300.3.35.1
xen-tools-debuginfo-4.14.5_06-150300.3.35.1

- SUSE Linux Enterprise Module for Server Applications 15-SP3 (noarch):
xen-tools-xendomains-wait-disk-4.14.5_06-150300.3.35.1
- SUSE Linux Enterprise Module for Basesystem 15-SP3 (x86_64):
xen-debugsource-4.14.5_06-150300.3.35.1
xen-libs-4.14.5_06-150300.3.35.1
xen-libs-debuginfo-4.14.5_06-150300.3.35.1
xen-tools-domU-4.14.5_06-150300.3.35.1
xen-tools-domU-debuginfo-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-4.14.5_06-150300.3.35.1
xen-libs-debuginfo-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-4.14.5_06-150300.3.35.1
xen-libs-debuginfo-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/1027519
  https://bugzilla.suse.com/1167608
  https://bugzilla.suse.com/1185104
  https://bugzilla.suse.com/1197081
  https://bugzilla.suse.com/1200762
  https://bugzilla.suse.com/1201394
  https://bugzilla.suse.com/1201631
  https://bugzilla.suse.com/1203806
  https://bugzilla.suse.com/1203807