hw/display/cirrus_vga_rop.h in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions. https://nvd.nist.gov/vuln/detail/CVE-2017-7718