Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA... · CVE-2016-9921 · GitHub Advisory Database · GitHub

Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA...

Moderate severity Unreviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Feb 2, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.

References

Published by the National Vulnerability Database

Dec 23, 2016

Published to the GitHub Advisory Database May 13, 2022

Last updated Feb 2, 2023

Severity

Moderate

6.5

/ 10

CVSS base metrics

Attack vector

Local

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H