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CVE-2016-9921

Published: 23 December 2016

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.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
artful Not vulnerable
(1:2.8+dfsg-3ubuntu2)
bionic Not vulnerable
(1:2.8+dfsg-3ubuntu2)
cosmic Not vulnerable
(1:2.8+dfsg-3ubuntu2)
disco Not vulnerable
(1:2.8+dfsg-3ubuntu2)
eoan Not vulnerable
(1:2.8+dfsg-3ubuntu2)
focal Not vulnerable
(1:2.8+dfsg-3ubuntu2)
groovy Not vulnerable
(1:2.8+dfsg-3ubuntu2)
hirsute Not vulnerable
(1:2.8+dfsg-3ubuntu2)
precise Does not exist

trusty
Released (2.0.0+dfsg-2ubuntu1.33)
upstream Needed

xenial
Released (1:2.5+dfsg-5ubuntu10.11)
yakkety
Released (1:2.6.1+dfsg-0ubuntu5.4)
zesty Not vulnerable
(1:2.8+dfsg-3ubuntu2)
Patches:
upstream: http://git.qemu-project.org/?p=qemu.git;a=commit;h=4299b90e9ba9ce5ca9024572804ba751aa1a7e70
qemu-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

precise Ignored
(end of ESM support, was needed)
trusty Does not exist

upstream Needed

xenial Does not exist

yakkety Does not exist

zesty Does not exist