CVE-2016-9382

Description

Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory gentoo.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/94470 third party advisory vdb entry
https://security.gentoo.org/glsa/201612-56 vendor advisory
http://xenbits.xen.org/xsa/advisory-192.html patch vendor advisory
http://www.securitytracker.com/id/1037341 third party advisory vdb entry
https://support.citrix.com/article/CTX218775 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2016-9382?
CVE-2016-9382 has been scored as a high severity vulnerability.
How to fix CVE-2016-9382?
To fix CVE-2016-9382, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-9382 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-9382 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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