SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:14886-1
Rating:             important
References:         #1194581 #1194588 
Cross-References:   CVE-2022-23034 CVE-2022-23035
CVSS scores:
                    CVE-2022-23034 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-23034 (SUSE): 4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
                    CVE-2022-23035 (NVD) : 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-23035 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Debuginfo 11-SP4
                    SUSE Linux Enterprise Server 11-SP4-LTSS
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   An update that fixes two vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2022-23034: Fixed possible DoS by a PV guest Xen while unmapping a
     grant. (XSA-394) (bsc#1194581)
   - CVE-2022-23035: Fixed insufficient cleanup of passed-through device
     IRQs. (XSA-395) (bsc#1194588)


Special Instructions and Notes:

   Please reboot the system after installing this update.

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:

   - SUSE Linux Enterprise Server 11-SP4-LTSS:

      zypper in -t patch slessp4-xen-14886=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-14886=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 x86_64):

      xen-kmp-default-4.4.4_52_3.0.101_108.132-61.70.1
      xen-libs-4.4.4_52-61.70.1
      xen-tools-domU-4.4.4_52-61.70.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (x86_64):

      xen-4.4.4_52-61.70.1
      xen-doc-html-4.4.4_52-61.70.1
      xen-libs-32bit-4.4.4_52-61.70.1
      xen-tools-4.4.4_52-61.70.1

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586):

      xen-kmp-pae-4.4.4_52_3.0.101_108.132-61.70.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      xen-debuginfo-4.4.4_52-61.70.1
      xen-debugsource-4.4.4_52-61.70.1


References:

   https://www.suse.com/security/cve/CVE-2022-23034.html
   https://www.suse.com/security/cve/CVE-2022-23035.html
   https://bugzilla.suse.com/1194581
   https://bugzilla.suse.com/1194588