SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:3842-1
Rating:             moderate
References:         #1189373 #1189378 #1189632 #1192554 #1192557 
                    #1192559 
Cross-References:   CVE-2021-28701 CVE-2021-28704 CVE-2021-28705
                    CVE-2021-28706 CVE-2021-28707 CVE-2021-28708
                    CVE-2021-28709
CVSS scores:
                    CVE-2021-28701 (SUSE): 7.4
 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28704 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-28705 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-28706 (NVD) : 8.6
 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
                    CVE-2021-28706 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-28707 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-28708 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-28709 (SUSE): 5.5
 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:
                    SUSE Linux Enterprise Server for SAP 15
                    SUSE Linux Enterprise High Performance Computing 15-LTSS
                    SUSE Linux Enterprise High Performance Computing 15-ESPOS
______________________________________________________________________________

   An update that fixes 7 vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling
     (XSA-384) (bsc#1189632).
   - CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on
     misaligned GFNs (XSA-388) (bsc#1192557).
   - CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful
     P2M updates on x86 (XSA-389) (bsc#1192559).
   - CVE-2021-28706: Fixed guests may exceed their designated memory limit
     (XSA-385) (bsc#1192554).

   - Integrate bugfixes (bsc#1189373, bsc#1189378).


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 for SAP 15:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-3842=1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2021-3842=1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2021-3842=1



Package List:

   - SUSE Linux Enterprise Server for SAP 15 (x86_64):

      xen-4.10.4_30-3.68.1
      xen-debugsource-4.10.4_30-3.68.1
      xen-devel-4.10.4_30-3.68.1
      xen-libs-4.10.4_30-3.68.1
      xen-libs-debuginfo-4.10.4_30-3.68.1
      xen-tools-4.10.4_30-3.68.1
      xen-tools-debuginfo-4.10.4_30-3.68.1
      xen-tools-domU-4.10.4_30-3.68.1
      xen-tools-domU-debuginfo-4.10.4_30-3.68.1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS (x86_64):

      xen-4.10.4_30-3.68.1
      xen-debugsource-4.10.4_30-3.68.1
      xen-devel-4.10.4_30-3.68.1
      xen-libs-4.10.4_30-3.68.1
      xen-libs-debuginfo-4.10.4_30-3.68.1
      xen-tools-4.10.4_30-3.68.1
      xen-tools-debuginfo-4.10.4_30-3.68.1
      xen-tools-domU-4.10.4_30-3.68.1
      xen-tools-domU-debuginfo-4.10.4_30-3.68.1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS (x86_64):

      xen-4.10.4_30-3.68.1
      xen-debugsource-4.10.4_30-3.68.1
      xen-devel-4.10.4_30-3.68.1
      xen-libs-4.10.4_30-3.68.1
      xen-libs-debuginfo-4.10.4_30-3.68.1
      xen-tools-4.10.4_30-3.68.1
      xen-tools-debuginfo-4.10.4_30-3.68.1
      xen-tools-domU-4.10.4_30-3.68.1
      xen-tools-domU-debuginfo-4.10.4_30-3.68.1


References:

   https://www.suse.com/security/cve/CVE-2021-28701.html
   https://www.suse.com/security/cve/CVE-2021-28704.html
   https://www.suse.com/security/cve/CVE-2021-28705.html
   https://www.suse.com/security/cve/CVE-2021-28706.html
   https://www.suse.com/security/cve/CVE-2021-28707.html
   https://www.suse.com/security/cve/CVE-2021-28708.html
   https://www.suse.com/security/cve/CVE-2021-28709.html
   https://bugzilla.suse.com/1189373
   https://bugzilla.suse.com/1189378
   https://bugzilla.suse.com/1189632
   https://bugzilla.suse.com/1192554
   https://bugzilla.suse.com/1192557
   https://bugzilla.suse.com/1192559