SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:1028-1
Rating:             important
References:         #1027519 #1177204 #1179148 #1180690 #1181254 
                    #1181989 #1182576 #1183072 
Cross-References:   CVE-2021-28687 CVE-2021-3308
CVSS scores:
                    CVE-2021-3308 (NVD) : 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-3308 (SUSE): 5.9
 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected Products:
                    SUSE MicroOS 5.0
                    SUSE Linux Enterprise Module for Server Applications 15-SP2
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________

   An update that solves two vulnerabilities and has 6 fixes
   is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2021-3308: VUL-0: xen: IRQ vector leak on x86 (bsc#1181254, XSA-360)
   - CVE-2021-28687: HVM soft-reset crashes toolstack (bsc#1183072, XSA-368)
   - L3: conring size for XEN HV's with huge memory to small. Inital Xen
 logs
     cut (bsc#1177204)
   - L3: XEN domU crashed on resume when using the xl unpause command
     (bsc#1182576)
   - L3: xen: no needsreboot flag set (bsc#1180690)
   - kdump of HVM fails, soft-reset not handled by libxl (bsc#1179148)
   - openQA job causes libvirtd to dump core when running kdump inside domain
     (bsc#1181989)
   - Upstream bug fixes (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:

   - SUSE MicroOS 5.0:

      zypper in -t patch SUSE-SUSE-MicroOS-5.0-2021-1028=1

   - SUSE Linux Enterprise Module for Server Applications 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-1028=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-1028=1



Package List:

   - SUSE MicroOS 5.0 (x86_64):

      xen-debugsource-4.13.2_08-3.25.3
      xen-libs-4.13.2_08-3.25.3
      xen-libs-debuginfo-4.13.2_08-3.25.3

   - SUSE Linux Enterprise Module for Server Applications 15-SP2 (x86_64):

      xen-4.13.2_08-3.25.3
      xen-debugsource-4.13.2_08-3.25.3
      xen-devel-4.13.2_08-3.25.3
      xen-tools-4.13.2_08-3.25.3
      xen-tools-debuginfo-4.13.2_08-3.25.3

   - SUSE Linux Enterprise Module for Server Applications 15-SP2 (noarch):

      xen-tools-xendomains-wait-disk-4.13.2_08-3.25.3

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (x86_64):

      xen-debugsource-4.13.2_08-3.25.3
      xen-libs-4.13.2_08-3.25.3
      xen-libs-debuginfo-4.13.2_08-3.25.3
      xen-tools-domU-4.13.2_08-3.25.3
      xen-tools-domU-debuginfo-4.13.2_08-3.25.3


References:

   https://www.suse.com/security/cve/CVE-2021-28687.html
   https://www.suse.com/security/cve/CVE-2021-3308.html
   https://bugzilla.suse.com/1027519
   https://bugzilla.suse.com/1177204
   https://bugzilla.suse.com/1179148
   https://bugzilla.suse.com/1180690
   https://bugzilla.suse.com/1181254
   https://bugzilla.suse.com/1181989
   https://bugzilla.suse.com/1182576
   https://bugzilla.suse.com/1183072