{"id":"CVE-2017-10917","details":"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.","modified":"2026-03-15T22:14:25.350908Z","published":"2017-07-05T01:29:00.737Z","related":["SUSE-SU-2017:1795-1","SUSE-SU-2017:1812-1"],"references":[{"type":"WEB","url":"http://www.securityfocus.com/bid/99157"},{"type":"WEB","url":"http://www.securitytracker.com/id/1038731"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3969"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201708-03"},{"type":"ADVISORY","url":"https://xenbits.xen.org/xsa/advisory-221.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.8.1"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-10917.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"}]}