CVE-2016-9921

6.5 MEDIUM
Published: December 23, 2016 Modified: May 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/09/1
Source: secalert@redhat.com
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/94803
Source: secalert@redhat.com
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2392
Source: secalert@redhat.com
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408
Source: secalert@redhat.com
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Source: secalert@redhat.com
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201701-49
Source: secalert@redhat.com
Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/09/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/94803
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2392
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://security.gentoo.org/glsa/201701-49
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

12 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.1%
28th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

redhat debian qemu