Security update for xen (important)

An update that contains security fixes can now be installed.

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).
• Fixed an issue where PCI passthrough failed on AMD machine xen host
  (bsc#1157047).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Patch Instructions:

To install this openSUSE 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:

• openSUSE Leap 15.1:

  zypper in -t patch openSUSE-2020-11=1