Heap Buffer Overflow Vulnerability in QEMU's Cirrus CLGD 54xx VGA Emulator's VNC Display Driver Support

CVE-2016-9603 · HIGH Severity

AV:N/AC:L/AU:S/C:C/I:C/A:C

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.

Learn more about our User Device Pen Test.