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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.1704
                          Security update for xen
                               22 March 2023

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           xen
Publisher:         SUSE
Operating System:  SUSE
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-42334 CVE-2022-42333 CVE-2022-42332
                   CVE-2022-42331  

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2023/suse-su-20230848-1

Comment: CVSS (Max):  7.5 CVE-2022-42332 (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
         CVSS Source: SUSE
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

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Security update for xen

Announcement ID:  SUSE-SU-2023:0848-1
     Rating:      important
                    o #1209017
                    o #1209018
   References:      o #1209019
                    o #1209188

                    o CVE-2022-42331
                    o CVE-2022-42332
Cross-References:   o CVE-2022-42333
                    o CVE-2022-42334

                    o CVE-2022-42331 ( SUSE ): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
                      /S:C/C:H/I:N/A:N
                    o CVE-2022-42332 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N
                      /S:C/C:H/I:H/A:H
  CVSS scores:      o CVE-2022-42333 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N
                      /S:C/C:L/I:L/A:H
                    o CVE-2022-42334 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:H/PR:H/UI:N
                      /S:C/C:L/I:L/A:H

                    o Basesystem Module 15-SP4
                    o openSUSE Leap 15.4
                    o openSUSE Leap Micro 5.3
                    o Server Applications Module 15-SP4
                    o SUSE Linux Enterprise Desktop 15 SP4
                    o SUSE Linux Enterprise High Performance Computing 15 SP4
    Affected        o SUSE Linux Enterprise Micro 5.3
    Products:       o SUSE Linux Enterprise Micro for Rancher 5.3
                    o SUSE Linux Enterprise Real Time 15 SP4
                    o SUSE Linux Enterprise Server 15 SP4
                    o SUSE Linux Enterprise Server for SAP Applications 15 SP4
                    o SUSE Manager Proxy 4.3
                    o SUSE Manager Retail Branch Server 4.3
                    o SUSE Manager Server 4.3

An update that solves four vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

  o CVE-2022-42332: Fixed use-after-free in x86 shadow plus log-dirty mode (bsc
    #1209017).
  o CVE-2022-42333,CVE-2022-42334: Fixed x86/HVM pinned cache attributes
    mis-handling (bsc#1209018).
  o CVE-2022-42331: Fixed speculative vulnerability in 32bit SYSCALL path on
    x86 (bsc#1209019).

Special Instructions and Notes:

  o Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  o openSUSE Leap Micro 5.3
    zypper in -t patch openSUSE-Leap-Micro-5.3-2023-848=1
  o openSUSE Leap 15.4
    zypper in -t patch openSUSE-SLE-15.4-2023-848=1
  o SUSE Linux Enterprise Micro for Rancher 5.3
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-848=1
  o SUSE Linux Enterprise Micro 5.3
    zypper in -t patch SUSE-SLE-Micro-5.3-2023-848=1
  o Basesystem Module 15-SP4
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP4-2023-848=1
  o Server Applications Module 15-SP4
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2023-848=1

Package List:

  o openSUSE Leap Micro 5.3 (x86_64)
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-libs-debuginfo-4.16.3_06-150400.4.25.1
       xen-libs-4.16.3_06-150400.4.25.1
  o openSUSE Leap 15.4 (aarch64 x86_64)
       xen-tools-domU-4.16.3_06-150400.4.25.1
       xen-doc-html-4.16.3_06-150400.4.25.1
       xen-tools-domU-debuginfo-4.16.3_06-150400.4.25.1
       xen-devel-4.16.3_06-150400.4.25.1
       xen-tools-debuginfo-4.16.3_06-150400.4.25.1
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-4.16.3_06-150400.4.25.1
       xen-libs-4.16.3_06-150400.4.25.1
       xen-libs-debuginfo-4.16.3_06-150400.4.25.1
       xen-tools-4.16.3_06-150400.4.25.1
  o openSUSE Leap 15.4 (x86_64)
       xen-libs-32bit-4.16.3_06-150400.4.25.1
       xen-libs-32bit-debuginfo-4.16.3_06-150400.4.25.1
  o openSUSE Leap 15.4 (noarch)
       xen-tools-xendomains-wait-disk-4.16.3_06-150400.4.25.1
  o SUSE Linux Enterprise Micro for Rancher 5.3 (x86_64)
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-libs-debuginfo-4.16.3_06-150400.4.25.1
       xen-libs-4.16.3_06-150400.4.25.1
  o SUSE Linux Enterprise Micro 5.3 (x86_64)
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-libs-debuginfo-4.16.3_06-150400.4.25.1
       xen-libs-4.16.3_06-150400.4.25.1
  o Basesystem Module 15-SP4 (x86_64)
       xen-tools-domU-4.16.3_06-150400.4.25.1
       xen-tools-domU-debuginfo-4.16.3_06-150400.4.25.1
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-libs-4.16.3_06-150400.4.25.1
       xen-libs-debuginfo-4.16.3_06-150400.4.25.1
  o Server Applications Module 15-SP4 (x86_64)
       xen-devel-4.16.3_06-150400.4.25.1
       xen-tools-debuginfo-4.16.3_06-150400.4.25.1
       xen-debugsource-4.16.3_06-150400.4.25.1
       xen-4.16.3_06-150400.4.25.1
       xen-tools-4.16.3_06-150400.4.25.1
  o Server Applications Module 15-SP4 (noarch)
       xen-tools-xendomains-wait-disk-4.16.3_06-150400.4.25.1

References:

  o https://www.suse.com/security/cve/CVE-2022-42331.html
  o https://www.suse.com/security/cve/CVE-2022-42332.html
  o https://www.suse.com/security/cve/CVE-2022-42333.html
  o https://www.suse.com/security/cve/CVE-2022-42334.html
  o https://bugzilla.suse.com/show_bug.cgiid=1209017
  o https://bugzilla.suse.com/show_bug.cgiid=1209018
  o https://bugzilla.suse.com/show_bug.cgiid=1209019
  o https://bugzilla.suse.com/show_bug.cgiid=1209188

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===========================================================================
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