SUSE-SU-2021:3322-1: moderate: Security update for xen

Thu Oct 7 22:16:30 UTC 2021

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:3322-1
Rating:             moderate
References:         #1182654 #1186429 #1186433 #1186434 #1187369 
                    #1187376 #1187378 #1189373 #1189376 #1189378 
                    #1189632 #1189882 
Cross-References:   CVE-2021-0089 CVE-2021-20255 CVE-2021-28690
                    CVE-2021-28692 CVE-2021-28694 CVE-2021-28695
                    CVE-2021-28696 CVE-2021-28697 CVE-2021-28698
                    CVE-2021-28701 CVE-2021-3592 CVE-2021-3594
                    CVE-2021-3595
CVSS scores:
                    CVE-2021-0089 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
                    CVE-2021-20255 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-20255 (SUSE): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
                    CVE-2021-28694 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28695 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28696 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28697 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-28698 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    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-2021-3592 (NVD) : 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-3592 (SUSE): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-3594 (NVD) : 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-3594 (SUSE): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-3595 (NVD) : 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
                    CVE-2021-3595 (SUSE): 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected Products:
                    SUSE Linux Enterprise Server 12-SP2-BCL
______________________________________________________________________________

   An update that fixes 13 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-2021-28694,CVE-2021-28695,CVE-2021-28696: Fixed IOMMU page mapping
     issues on x86 (XSA-378)(bsc#1189373).
   - CVE-2021-28697: Fixed grant table v2 status pages that may remain
     accessible after de-allocation (XSA-379)(bsc#1189376).
   - CVE-2021-28698: Fixed long running loops in grant table handling
     (XSA-380)(bsc#1189378).
   - CVE-2021-20255: Fixed eepro100 stack overflow via infinite recursion
     (bsc#1182654).
   - CVE-2021-3592: Fixed invalid pointer initialization may lead to
     information disclosure (bootp) (bsc#1187369).
   - CVE-2021-3594: Fixed invalid pointer initialization may lead to
     information disclosure (udp) (bsc#1187378).
   - CVE-2021-3595: Fixed invalid pointer initialization may lead to
     information disclosure (tftp) (bsc#1187376).
   - CVE-2021-28692: Fixed inappropriate x86 IOMMU timeout detection /
     handling (XSA-373)(bsc#1186429).
   - CVE-2021-0089: Fixed Speculative Code Store Bypass
     (XSA-375)(bsc#1186433).
   - CVE-2021-28690: Fixed x86 TSX Async Abort protections not restored after
     S3 (XSA-377)(bsc#1186434).

   - Prevent superpage allocation in the LAPIC and ACPI_INFO range
     (bsc#1189882).

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 12-SP2-BCL:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2021-3322=1

Package List:

   - SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):

      xen-4.7.6_16-43.79.5
      xen-debugsource-4.7.6_16-43.79.5
      xen-doc-html-4.7.6_16-43.79.5
      xen-libs-32bit-4.7.6_16-43.79.5
      xen-libs-4.7.6_16-43.79.5
      xen-libs-debuginfo-32bit-4.7.6_16-43.79.5
      xen-libs-debuginfo-4.7.6_16-43.79.5
      xen-tools-4.7.6_16-43.79.5
      xen-tools-debuginfo-4.7.6_16-43.79.5
      xen-tools-domU-4.7.6_16-43.79.5
      xen-tools-domU-debuginfo-4.7.6_16-43.79.5

References:

   https://www.suse.com/security/cve/CVE-2021-0089.html
   https://www.suse.com/security/cve/CVE-2021-20255.html
   https://www.suse.com/security/cve/CVE-2021-28690.html
   https://www.suse.com/security/cve/CVE-2021-28692.html
   https://www.suse.com/security/cve/CVE-2021-28694.html
   https://www.suse.com/security/cve/CVE-2021-28695.html
   https://www.suse.com/security/cve/CVE-2021-28696.html
   https://www.suse.com/security/cve/CVE-2021-28697.html
   https://www.suse.com/security/cve/CVE-2021-28698.html
   https://www.suse.com/security/cve/CVE-2021-28701.html
   https://www.suse.com/security/cve/CVE-2021-3592.html
   https://www.suse.com/security/cve/CVE-2021-3594.html
   https://www.suse.com/security/cve/CVE-2021-3595.html
   https://bugzilla.suse.com/1182654
   https://bugzilla.suse.com/1186429
   https://bugzilla.suse.com/1186433
   https://bugzilla.suse.com/1186434
   https://bugzilla.suse.com/1187369
   https://bugzilla.suse.com/1187376
   https://bugzilla.suse.com/1187378
   https://bugzilla.suse.com/1189373
   https://bugzilla.suse.com/1189376
   https://bugzilla.suse.com/1189378
   https://bugzilla.suse.com/1189632
   https://bugzilla.suse.com/1189882