SUSE-SU-2019:3310-1: important: Security update for xen

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

   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:3310-1
Rating:             important
References:         #1154460 #1154461 #1154464 #1157888 #1158003 
                    #1158004 #1158005 #1158006 #1158007 
Cross-References:   CVE-2019-18422 CVE-2019-18423 CVE-2019-18424
                    CVE-2019-19577 CVE-2019-19578 CVE-2019-19579
                    CVE-2019-19580 CVE-2019-19581 CVE-2019-19582
                    CVE-2019-19583
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 12-SP4
                    SUSE Linux Enterprise Server 12-SP4
                    SUSE Linux Enterprise Desktop 12-SP4
______________________________________________________________________________

   An update that fixes 10 vulnerabilities is now available.

Description:

   This update for xen fixes the following issues:

   - CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm
     (bsc#1158003 XSA-307).
   - CVE-2019-19582: Fixed a potential infinite loop when x86 accesses to
     bitmaps with a compile time known size of 64 (bsc#1158003 XSA-307).
   - CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH
     guest userspace code to crash the guest,leading to a guest denial of
     service (bsc#1158004 XSA-308).
   - CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could
     have caused hypervisor crash resulting in denial of service affecting
     the entire host (bsc#1158005 XSA-309).
   - CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest
     administrator could have been able to escalate their privilege to that
     of the host (bsc#1158006 XSA-310).
   - CVE-2019-19577: Fixed an issue where a malicious guest administrator
     could have caused Xen to access data structures while they are being
     modified leading to a crash (bsc#1158007 XSA-311).
   - CVE-2019-19579: Fixed a privilege escaltion where an untrusted domain
     with access to a physical device can DMA into host memory (bsc#1157888
     XSA-306).
   - CVE-2019-18423: A malicious guest administrator may cause a hypervisor
     crash, resulting in a Denial of Service (DoS). (bsc#1154460).
   - CVE-2019-18424: An untrusted domain with access to a physical device can
     DMA into host memory, leading to privilege escalation. (bsc#1154461).
   - CVE-2019-18422: A malicious ARM guest might contrive to arrange for
     critical Xen code to run with interrupts erroneously enabled. This could
     lead to data corruption, denial of service, or possibly even privilege
     escalation. However a precise attack technique has not been identified.
     (bsc#1154464)


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-SP4:

      zypper in -t patch SUSE-SLE-SDK-12-SP4-2019-3310=1

   - SUSE Linux Enterprise Server 12-SP4:

      zypper in -t patch SUSE-SLE-SERVER-12-SP4-2019-3310=1

   - SUSE Linux Enterprise Desktop 12-SP4:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP4-2019-3310=1



Package List:

   - SUSE Linux Enterprise Software Development Kit 12-SP4 (aarch64 x86_64):

      xen-debugsource-4.11.3_02-2.20.1
      xen-devel-4.11.3_02-2.20.1

   - SUSE Linux Enterprise Server 12-SP4 (x86_64):

      xen-4.11.3_02-2.20.1
      xen-debugsource-4.11.3_02-2.20.1
      xen-doc-html-4.11.3_02-2.20.1
      xen-libs-32bit-4.11.3_02-2.20.1
      xen-libs-4.11.3_02-2.20.1
      xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
      xen-libs-debuginfo-4.11.3_02-2.20.1
      xen-tools-4.11.3_02-2.20.1
      xen-tools-debuginfo-4.11.3_02-2.20.1
      xen-tools-domU-4.11.3_02-2.20.1
      xen-tools-domU-debuginfo-4.11.3_02-2.20.1

   - SUSE Linux Enterprise Desktop 12-SP4 (x86_64):

      xen-4.11.3_02-2.20.1
      xen-debugsource-4.11.3_02-2.20.1
      xen-libs-32bit-4.11.3_02-2.20.1
      xen-libs-4.11.3_02-2.20.1
      xen-libs-debuginfo-32bit-4.11.3_02-2.20.1
      xen-libs-debuginfo-4.11.3_02-2.20.1


References:

   https://www.suse.com/security/cve/CVE-2019-18422.html
   https://www.suse.com/security/cve/CVE-2019-18423.html
   https://www.suse.com/security/cve/CVE-2019-18424.html
   https://www.suse.com/security/cve/CVE-2019-19577.html
   https://www.suse.com/security/cve/CVE-2019-19578.html
   https://www.suse.com/security/cve/CVE-2019-19579.html
   https://www.suse.com/security/cve/CVE-2019-19580.html
   https://www.suse.com/security/cve/CVE-2019-19581.html
   https://www.suse.com/security/cve/CVE-2019-19582.html
   https://www.suse.com/security/cve/CVE-2019-19583.html
   https://bugzilla.suse.com/1154460
   https://bugzilla.suse.com/1154461
   https://bugzilla.suse.com/1154464
   https://bugzilla.suse.com/1157888
   https://bugzilla.suse.com/1158003
   https://bugzilla.suse.com/1158004
   https://bugzilla.suse.com/1158005
   https://bugzilla.suse.com/1158006
   https://bugzilla.suse.com/1158007