SUSE-SU-2022:3728-1: important: Security update for xen

[sle-security-updates at lists.suse.com]

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2022:3728-1
Rating:             important
References:         #1185104 #1200762 #1203806 #1203807 
Cross-References:   CVE-2021-28689 CVE-2022-26365 CVE-2022-33740
                    CVE-2022-33741 CVE-2022-33742 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-2022-33746 (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 Server 12-SP5
                    SUSE Linux Enterprise Server for SAP Applications 12-SP5
                    SUSE Linux Enterprise Software Development Kit 12-SP5
______________________________________________________________________________

   An update that fixes 7 vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

     - 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-2022-33746: Fixed DoS due to excessively long P2M pool freeing
       (bsc#1203806).
     - CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim)
       32-bit PV guests (bsc#1185104).
     - CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).


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 Software Development Kit 12-SP5:

      zypper in -t patch SUSE-SLE-SDK-12-SP5-2022-3728=1

   - SUSE Linux Enterprise Server 12-SP5:

      zypper in -t patch SUSE-SLE-SERVER-12-SP5-2022-3728=1



Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 x86_64):

      xen-debugsource-4.12.4_28-3.77.1
      xen-devel-4.12.4_28-3.77.1

   - SUSE Linux Enterprise Server 12-SP5 (x86_64):

      xen-4.12.4_28-3.77.1
      xen-debugsource-4.12.4_28-3.77.1
      xen-doc-html-4.12.4_28-3.77.1
      xen-libs-32bit-4.12.4_28-3.77.1
      xen-libs-4.12.4_28-3.77.1
      xen-libs-debuginfo-32bit-4.12.4_28-3.77.1
      xen-libs-debuginfo-4.12.4_28-3.77.1
      xen-tools-4.12.4_28-3.77.1
      xen-tools-debuginfo-4.12.4_28-3.77.1
      xen-tools-domU-4.12.4_28-3.77.1
      xen-tools-domU-debuginfo-4.12.4_28-3.77.1


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-2022-33746.html
   https://www.suse.com/security/cve/CVE-2022-33748.html
   https://bugzilla.suse.com/1185104
   https://bugzilla.suse.com/1200762
   https://bugzilla.suse.com/1203806
   https://bugzilla.suse.com/1203807