A xen security update has been released for SUSE Linux Enterprise and openSUSE Leap 15.4.

SUSE-SU-2022:3727-1: moderate: Security update for xen

SUSE Security Update: Security update for xen
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Announcement ID: SUSE-SU-2022:3727-1
Rating: moderate
References: #1027519 #1167608 #1201631 #1201994 #1203806 #1203807
Cross-References: CVE-2022-33746 CVE-2022-33748
CVSS scores:
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-SP4
SUSE Linux Enterprise High Performance Computing 15-SP4 SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Module for Basesystem 15-SP4 SUSE Linux Enterprise Module for Server Applications 15-SP4
SUSE Linux Enterprise Server 15-SP4
SUSE Linux Enterprise Server for SAP Applications 15-SP4SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
openSUSE Leap 15.4
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An update that solves two vulnerabilities and has four
fixes is now available.

Description:

This update for xen fixes the following issues:

Updated to version 4.16.2 (bsc#1027519):

- 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).

Bugfixes:

- Fixed Xen DomU unable to emulate audio device (bsc#1201994). - Fixed logic error in built-in default of max_event_channels (bsc#1167608, bsc#1201631).

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 15.4:

zypper in -t patch openSUSE-SLE-15.4-2022-3727=1

- SUSE Linux Enterprise Module for Server Applications 15-SP4:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2022-3727=1

- SUSE Linux Enterprise Module for Basesystem 15-SP4:

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2022-3727=1
- SUSE Linux Enterprise Micro 5.3:

zypper in -t patch SUSE-SLE-Micro-5.3-2022-3727=1


Package List:

- openSUSE Leap 15.4 (aarch64 x86_64):

xen-4.16.2_06-150400.4.11.1
xen-debugsource-4.16.2_06-150400.4.11.1
xen-devel-4.16.2_06-150400.4.11.1
xen-doc-html-4.16.2_06-150400.4.11.1
xen-libs-4.16.2_06-150400.4.11.1
xen-libs-debuginfo-4.16.2_06-150400.4.11.1
xen-tools-4.16.2_06-150400.4.11.1
xen-tools-debuginfo-4.16.2_06-150400.4.11.1
xen-tools-domU-4.16.2_06-150400.4.11.1
xen-tools-domU-debuginfo-4.16.2_06-150400.4.11.1

- openSUSE Leap 15.4 (x86_64):

xen-libs-32bit-4.16.2_06-150400.4.11.1
xen-libs-32bit-debuginfo-4.16.2_06-150400.4.11.1

- openSUSE Leap 15.4 (noarch):

xen-tools-xendomains-wait-disk-4.16.2_06-150400.4.11.1
- SUSE Linux Enterprise Module for Server Applications 15-SP4 (x86_64):
xen-4.16.2_06-150400.4.11.1
xen-debugsource-4.16.2_06-150400.4.11.1
xen-devel-4.16.2_06-150400.4.11.1
xen-tools-4.16.2_06-150400.4.11.1
xen-tools-debuginfo-4.16.2_06-150400.4.11.1

- SUSE Linux Enterprise Module for Server Applications 15-SP4 (noarch):
xen-tools-xendomains-wait-disk-4.16.2_06-150400.4.11.1
- SUSE Linux Enterprise Module for Basesystem 15-SP4 (x86_64):
xen-debugsource-4.16.2_06-150400.4.11.1
xen-libs-4.16.2_06-150400.4.11.1
xen-libs-debuginfo-4.16.2_06-150400.4.11.1
xen-tools-domU-4.16.2_06-150400.4.11.1
xen-tools-domU-debuginfo-4.16.2_06-150400.4.11.1

- SUSE Linux Enterprise Micro 5.3 (x86_64):

xen-debugsource-4.16.2_06-150400.4.11.1
xen-libs-4.16.2_06-150400.4.11.1
xen-libs-debuginfo-4.16.2_06-150400.4.11.1

References:

  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/1201631
  https://bugzilla.suse.com/1201994
  https://bugzilla.suse.com/1203806
  https://bugzilla.suse.com/1203807