CVE-2017-10917

9.1 CRITICAL

Published: July 05, 2017 Modified: May 13, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.debian.org/security/2017/dsa-3969

Source: cve@mitre.org

http://www.securityfocus.com/bid/99157

Source: cve@mitre.org

http://www.securitytracker.com/id/1038731

Source: cve@mitre.org

https://security.gentoo.org/glsa/201708-03

Source: cve@mitre.org

https://xenbits.xen.org/xsa/advisory-221.html

Source: cve@mitre.org

Mailing List Mitigation Third Party Advisory

http://www.debian.org/security/2017/dsa-3969