This update for virglrenderer fixes the following issues:
- CVE-2019-18388: Fixed a null pointer dereference which could have led
to denial of service (bsc#1159479).
- CVE-2019-18390: Fixed an out of bound read which could have led to
denial of service (bsc#1159478).
- CVE-2019-18389: Fixed a heap buffer overflow which could have led to
guest escape or denial of service (bsc#1159482).
- CVE-2019-18391: Fixed a heap based buffer overflow which could have led to
guest escape or denial of service (bsc#1159486).