QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue.
Date: 2016-12
Affected: qemu/qemu
Attack vector: dos
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2016-9846
CWE: CWE-119
CVSS: 6.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)

QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.


Mitigations:

Architectural layers (MAESTRO):