{"id":"CVE-2017-5972","details":"The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many TCP SYN packets, as demonstrated by an attack against the kernel-3.10.0 package in CentOS Linux 7. NOTE: third parties have been unable to discern any relationship between the GitHub Engineering finding and the Trigemini.c attack code.","modified":"2026-03-12T22:39:24.568116Z","published":"2017-02-14T06:59:00.277Z","references":[{"type":"ADVISORY","url":"http://seclists.org/oss-sec/2017/q1/573"},{"type":"ADVISORY","url":"https://githubengineering.com/syn-flood-mitigation-with-synsanity/"},{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2017-5972"},{"type":"ADVISORY","url":"https://www.exploit-db.com/exploits/41350/"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/96231"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/cve-2017-5972"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1422081"},{"type":"EVIDENCE","url":"https://cxsecurity.com/issue/WLB-2017020112"},{"type":"EVIDENCE","url":"https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"3.0.0"},{"last_affected":"3.19.8"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-5972.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}