CVE-2016-9383

HIGH

Xen - Memory Corruption via Bit Test Instruction Emulation

Title source: llm
STIX 2.1

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 (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/94474
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201612-56
Patch, Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-195.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1037346
Patch, Third Party Advisory x_refsource_confirm
https://support.citrix.com/article/CTX218775

Scores

CVSS v3 8.8
EPSS 0.0014
EPSS Percentile 32.9%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (5)
citrix/xenserver 6.0.2
citrix/xenserver 6.2.0
citrix/xenserver 6.5
citrix/xenserver 7.0
xen/xen
Published Jan 23, 2017
Tracked Since Feb 18, 2026