CVE-2016-9921
6.5
MEDIUM
CVSS 3.1
EPSS 0.07%
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.
How to fix CVE-2016-9921
To remediate CVE-2016-9921, upgrade the affected package to a fixed version below.
- Debian/qemu—upgrade to 1:2.8+dfsg-1 or later
Is CVE-2016-9921 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:2.8+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |