CVE-2016-9921

LOW

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

http://www.openwall.com/lists/oss-security/2016/12/09/1

http://www.securityfocus.com/bid/94803

https://access.redhat.com/errata/RHSA-2017:2392

https://access.redhat.com/errata/RHSA-2017:2408

https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html

https://security.gentoo.org/glsa/201701-49

Details

Source: MITRE

Published: 2016-12-23

Updated: 2018-09-07

Type: CWE-369

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 2

Severity: MEDIUM