CVE-2016-9637

LOW

Description

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.

References

http://rhn.redhat.com/errata/RHSA-2016-2963.html

http://www.securityfocus.com/bid/94699

http://www.securitytracker.com/id/1037397

http://xenbits.xen.org/xsa/advisory-199.html

https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html

https://security.gentoo.org/glsa/201612-56

https://support.citrix.com/article/CTX219136

Details

Source: MITRE

Published: 2017-02-17

Updated: 2018-02-08

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 3.7

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

Impact Score: 6.4

Exploitability Score: 1.9

Severity: LOW

CVSS v3.0

Base Score: 7.5

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

Impact Score: 6

Exploitability Score: 0.8

Severity: HIGH