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CVE-2016-9846

Qemu: display: virtio-gpu: memory leakage while updating cursor data

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Severity

Low

Red Hat Product Security

3

CVSS 3.0

Review impact separately from score.

Published · November 1, 2016

Updated · November 21, 2025

Description

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 3
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L

CVSS 2.0 · 2.3
AV:A/AC:M/Au:S/C:N/I:N/A:P

CWE-244 · Improper Clearing of Heap Memory Before Release ('Heap Inspection')