SUSE-SU-2021:14702-1: important: Security update for xen

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

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:14702-1
Rating:             important
References:         #1182155 #1182846 #1182975 
Cross-References:   CVE-2021-20257 CVE-2021-3419
CVSS scores:
                    CVE-2021-20257 (SUSE): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
                    CVE-2021-3419 (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 11-SP4-LTSS
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves two vulnerabilities and has one
   errata is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2021-3419: Fixed a stack overflow induced by infinite recursion
     issue (bsc#1182975).
   - CVE-2021-20257: Fixed an infinite loop in the e1000 NIC emulator
     (bsc#1182846)
   - xenstored crashing with segfault (bsc#1182155).


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-14702=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-14702=1



Package List:

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

      xen-kmp-default-4.4.4_48_3.0.101_108.123-61.64.1
      xen-libs-4.4.4_48-61.64.1
      xen-tools-domU-4.4.4_48-61.64.1

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

      xen-4.4.4_48-61.64.1
      xen-doc-html-4.4.4_48-61.64.1
      xen-libs-32bit-4.4.4_48-61.64.1
      xen-tools-4.4.4_48-61.64.1

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

      xen-kmp-pae-4.4.4_48_3.0.101_108.123-61.64.1

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

      xen-debuginfo-4.4.4_48-61.64.1
      xen-debugsource-4.4.4_48-61.64.1


References:

   https://www.suse.com/security/cve/CVE-2021-20257.html
   https://www.suse.com/security/cve/CVE-2021-3419.html
   https://bugzilla.suse.com/1182155
   https://bugzilla.suse.com/1182846
   https://bugzilla.suse.com/1182975