CVE-2016-7093

Description

Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.

Category

8.2
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory gentoo.org Vendor Advisory xen.org Vendor Advisory xen.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://xenbits.xen.org/xsa/advisory-186.html patch vendor advisory
http://www.securityfocus.com/bid/92865 vdb entry
http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patch patch vendor advisory
http://support.citrix.com/article/CTX216071 third party advisory
http://www.securitytracker.com/id/1036752 vdb entry third party advisory
https://security.gentoo.org/glsa/201611-09 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-7093?
CVE-2016-7093 has been scored as a high severity vulnerability.
How to fix CVE-2016-7093?
To fix CVE-2016-7093, 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-2016-7093 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7093 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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