The virtio_gpu_set_scanout function in QEMU (aka Quick Emulator) built with Virtio GPU Device emulator support allows local guest OS users to cause a denial of service (out-of-bounds read and process crash) via a scanout id in a VIRTIO_GPU_CMD_SET_SCANOUT command larger than num_scanouts.
http://git.qemu-project.org/?p=qemu.git;a=commit;h=2fe760554eb3769d70f608a158474f
http://git.qemu-project.org/?p=qemu.git;a=commit;h=acfc4846508a02cc4c83aa27799fd7
http://www.openwall.com/lists/oss-security/2016/12/20/2
http://www.openwall.com/lists/oss-security/2016/12/22/15
Source: MITRE
Published: 2017-02-27
Updated: 2020-11-09
Type: CWE-125
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM