{
  "affected": [
    {
      "database_specific": {
        "unresolved_ranges": [
          {
            "events": [
              {
                "introduced": "3.0.0"
              },
              {
                "last_affected": "3.19.8"
              }
            ]
          }
        ]
      }
    }
  ],
  "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.",
  "id": "CVE-2017-5972",
  "modified": "2026-03-15T21:45:22.871685101Z",
  "published": "2017-02-14T06:59:00.277Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.exploit-db.com/exploits/41350/"
    },
    {
      "type": "ADVISORY",
      "url": "http://seclists.org/oss-sec/2017/q1/573"
    },
    {
      "type": "ADVISORY",
      "url": "http://www.securityfocus.com/bid/96231"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/cve-2017-5972"
    },
    {
      "type": "ADVISORY",
      "url": "https://githubengineering.com/syn-flood-mitigation-with-synsanity/"
    },
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/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"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}