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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-764-1 qemu security update
Debian DLA Debian DLA DLA-765-1 qemu-kvm security update
Debian DLA Debian DLA DLA-842-1 qemu-kvm security update
Debian DLA Debian DLA DLA-845-1 qemu security update
Debian DLA Debian DLA DLA-1497-1 qemu security update
EUVD EUVD EUVD-2016-10708 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.
Ubuntu USN Ubuntu USN USN-3261-1 QEMU vulnerabilities
Fixes

Solution

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T03:07:31.373Z

Reserved: 2016-12-08T00:00:00.000Z

Link: CVE-2016-9921

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2016-12-23T22:59:00.550

Modified: 2025-04-12T10:46:40.837

Link: CVE-2016-9921

cve-icon Redhat

Severity : Low

Publid Date: 2016-10-18T00:00:00Z

Links: CVE-2016-9921 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses