This update for xen fixes the following issues:
- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator
which could have led to Denial of Service (bsc#1149813).
- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of
service (bsc#1146874).
- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU
emulator which could have led to execution of arbitrary code with privileges of the
QEMU process (bsc#1143797).