CVE-2017-10917

Critical

Description

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.

SeverityCritical

CVSS9.1

Exploit probability—

ProductXen

PublishedJul 5, 2017

First seenJul 5, 2017

How to fix

Vendor advisories

security.gentoo.org/glsa/201708-03

Affected products

Product	Affected versions	Fixed in
xen xen	v ≤ 4.8.1	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.