Affected configuration(s):


Date published: 2017-07-04T21:29:00.737-04:00

Date last modified: 2017-11-03T21:29:31.943-04:00

CVSS Score: 9.4

Principal attack vector: NETWORK

Complexity:  LOW

Reference URL:

Summary: Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.


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