Security advisory

{
  "id": "3df99996fe8a32b77a784fce05617335512d3a8d0eff953bb2a21ff00c8d0cbe",
  "url": "https://osv.dev/vulnerability/CVE-2018-20552",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20552",
    "summary": "Tcpreplay before 4.3.1 has a heap-based buffer over-read in packet2tree in tree.c.",
    "evidence": "osv:CVE-2018-20552",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-20552",
      "aliases": [
        "CVE-2018-20552"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/appneta/tcpreplay",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2595c903b61d9e50b22cbfcc6899f8f11a17bbff"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:broadcom:tcpreplay:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v4.2.6",
            "v4.1.2",
            "v4.1.1",
            "v4.1.1-beta3",
            "v4.1.1-beta2",
            "v4.1.0",
            "v4.1.0beta2",
            "v4.1.0beta1",
            "v4.0.5",
            "v4.0.5beta3",
            "v4.0.5beta2",
            "v4.0.5beta1",
            "v4.0.4",
            "v4.0.3",
            "v4.0.2",
            "v4.0.1",
            "v4.0.0",
            "v4.0.0beta2",
            "v4.0.0beta1",
            "v3.4.4",
            "v3.4.3",
            "v3.4.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20552.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:24.734224085Z",
      "provider": "osv",
      "references": [
        "https://github.com/appneta/tcpreplay/pull/532/commits/6b830a1640ca20528032c89a4fdd8291a4d2d8b2",
        "https://github.com/appneta/tcpreplay/issues/530"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-20552",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381689,
  "published_at": "2018-12-28T16:29:05.113+00:00"
}