CVE-2016-9383

HIGH

Description

Xen, when running on a 64-bit hypervisor, allows local x86 guest OS users to modify arbitrary memory and consequently obtain sensitive information, cause a denial of service (host crash), or execute arbitrary code on the host by leveraging broken emulation of bit test instructions.

References

http://www.securityfocus.com/bid/94474

http://www.securitytracker.com/id/1037346

http://xenbits.xen.org/xsa/advisory-195.html

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

https://support.citrix.com/article/CTX218775

Details

Source: MITRE

Published: 2017-01-23

Updated: 2017-07-01

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 8.8

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

Impact Score: 6

Exploitability Score: 2

Severity: HIGH