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CVE-2016-9921 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector: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

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2017:2392 CVEThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408 CVEThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html CVEMailing ListThird Party Advisory
https://security.gentoo.org/glsa/201701-49 CVEThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/12/09/1 CVEMailing ListPatchThird Party Advisory

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-369Divide By Zero[email protected]

Affected Products

ProductVersions
qemu qemu
<= 2.7.1
2.8.0 rc0
2.8.0 rc1
2.8.0 rc2

CPE

  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
  • cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:*
  • cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
8.0

CPE

  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat openstack
6.0
7.0
8
9
10

CPE

  • cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
  • cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat virtualization
4.0

CPE

  • cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
7.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-9921
NVD Published Date:
Dec 23, 2016
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-9921 Details - Not Deferred