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.
http://www.openwall.com/lists/oss-security/2016/12/05/18
http://www.openwall.com/lists/oss-security/2016/12/05/23
http://www.securityfocus.com/bid/94765
https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg00029.html
Source: MITRE
Published: 2016-12-29
Updated: 2020-11-10
Type: CWE-119
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Impact Score: 4
Exploitability Score: 2
Severity: MEDIUM