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CVE-2017-2620

Published: 22 February 2017

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.

Priority

Medium

Cvss 3 Severity Score

9.9

Score breakdown

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)
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)
groovy Not vulnerable
(1:2.8+dfsg-3ubuntu2)
hirsute Not vulnerable
(1:2.8+dfsg-3ubuntu2)
Patches:
upstream: http://git.qemu-project.org/?p=qemu.git;a=commit;h=92f2b88cea48c6aeba8de568a45f2ed958f3c298
qemu-kvm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

groovy Does not exist

hirsute Does not exist

eoan Does not exist

focal Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream Needed

xenial Does not exist

yakkety Does not exist

zesty Does not exist

xen
Launchpad, Ubuntu, Debian
hirsute Not vulnerable
(uses system qemu)
artful Not vulnerable
(uses system qemu)
bionic Not vulnerable
(uses system qemu)
cosmic Not vulnerable
(uses system qemu)
disco Not vulnerable
(uses system qemu)
eoan Not vulnerable
(uses system qemu)
focal Not vulnerable
(uses system qemu)
groovy Not vulnerable
(uses system qemu)
precise Ignored
(end of life)
trusty
Released (4.4.2-0ubuntu0.14.04.11)
upstream Needed

xenial Not vulnerable
(uses system qemu)
yakkety Not vulnerable
(uses system qemu)
zesty Not vulnerable
(uses system qemu)
Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 9.9
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H