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CVE-2016-9637

Published: 17 February 2017

The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.

Notes

AuthorNote
ratliff
ARM systems are not vulnerable according to the XSA
mdeslaur
This is XSA-199

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
qemu
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)
yakkety Not vulnerable
(code not present)
qemu-kvm
Launchpad, Ubuntu, Debian
precise Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

xenial Does not exist

yakkety Does not exist

xen
Launchpad, Ubuntu, Debian
precise
Released (4.1.6.1-0ubuntu0.12.04.13)
trusty
Released (4.4.2-0ubuntu0.14.04.9)
upstream Needs triage

xenial Not vulnerable

yakkety Not vulnerable

Binaries built from this source package are in Universe and so are supported by the community.

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H