Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display.
lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html
www.openwall.com/lists/oss-security/2018/03/09/1
www.securityfocus.com/bid/103350
access.redhat.com/errata/RHSA-2018:1369
access.redhat.com/errata/RHSA-2018:1416
access.redhat.com/errata/RHSA-2018:2162
bugzilla.redhat.com/show_bug.cgi?id=1553402
lists.nongnu.org/archive/html/qemu-devel/2018-03/msg02174.html
usn.ubuntu.com/3649-1/