Security advisory

{
  "id": "2cbfbbb78c1c17ad95b323f674479dfb6451de5d64cca0df9e91cf9e6d45effb",
  "url": "https://osv.dev/vulnerability/CVE-2018-18408",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-18408",
    "summary": "A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1. The issue gets triggered in the function post_args() at tcpbridge.c, causing a denial of service or possibly unspecified other impact.",
    "evidence": "osv:CVE-2018-18408",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-18408",
      "aliases": [
        "CVE-2018-18408"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/appneta/tcpreplay",
              "type": "GIT",
              "events": [
                {
                  "introduced": "b663095bd87b60822d4b8688a48040c8f88fd045"
                },
                {
                  "last_affected": "b663095bd87b60822d4b8688a48040c8f88fd045"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:broadcom:tcpreplay:4.3.0:beta1:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.3.0-beta1"
                      },
                      {
                        "last_affected": "4.3.0-beta1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.3.0-beta1",
            "v4.3.0-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-18408.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:22.825880689Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4V3SADKXUSHWTVAPU3WLXBDEQUHRA6ZO/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLPY6W7Z7G6PF2JN4LXXHCACYLD4RBG6/",
        "https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay/README.md#use-after-free-in-post_args",
        "https://github.com/appneta/tcpreplay/issues/489"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "28"
                  },
                  {
                    "last_affected": "28"
                  },
                  {
                    "introduced": "29"
                  },
                  {
                    "last_affected": "29"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-18408",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381633,
  "published_at": "2018-10-17T04:29:00.767+00:00"
}