Vulnerability Monitor

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CVE-2016-9381

Race condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.

Published

2017-01-23T21:59:02.800

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-362

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 2.7.1	Yes
Application	qemu	qemu	2.8.0	Yes
Application	citrix	xenserver	6.0.2	Yes
Application	citrix	xenserver	6.2.0	Yes
Application	citrix	xenserver	6.5	Yes
Application	citrix	xenserver	7.0	Yes

References

http://www.securityfocus.com/bid/94476 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1037344 Third Party Advisory, VDB Entry ([email protected])
http://xenbits.xen.org/xsa/advisory-197.html Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201612-56 Third Party Advisory ([email protected])
https://support.citrix.com/article/CTX218775 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/94476 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1037344 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://xenbits.xen.org/xsa/advisory-197.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201612-56 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.citrix.com/article/CTX218775 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)