Security advisory

{
  "id": "322457ebfdbd72f38d2abb2e940f26711b3187fdbe1aab9b25e019f01b468178",
  "url": "https://osv.dev/vulnerability/CVE-2018-16452",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-16452",
    "summary": "The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion.",
    "evidence": "osv:CVE-2018-16452",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-16452",
      "aliases": [
        "CVE-2018-16452"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/the-tcpdump-group/tcpdump",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d9a693b043262f1999ee7aba28acadfd0f77cc38"
                },
                {
                  "fixed": "24182d959f661327525a20d9a94c98a8ec016778"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "4.9.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "24182d959f661327525a20d9a94c98a8ec016778"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "tcpdump-4.9.2",
            "tcpdump-4.9.1",
            "tcpdump-4.9.0",
            "tcpdump-4.9.0-bp",
            "tcpdump-4.7.0-bp",
            "tcpdump-4.6.0-bp",
            "tcpdump-4.6.0",
            "tcpdump-4.5.0",
            "tcpdump-3.8-bp",
            "tcpdump-3.7.1",
            "tcpdump-3.6.1",
            "tcpdump-3.5.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16452.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-16452-8cee2404",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "47701217873412167495166016656518889386",
                    "36974076840470573766651075701661087988",
                    "208563996260179577381131519374144831011",
                    "234526865333329858746992185399913069569"
                  ]
                },
                "source": "https://github.com/the-tcpdump-group/tcpdump/commit/24182d959f661327525a20d9a94c98a8ec016778",
                "target": {
                  "file": "smbutil.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-16452-eb08f6e3",
                "digest": {
                  "length": 1354,
                  "function_hash": "335627280371783606764285831172798020035"
                },
                "source": "https://github.com/the-tcpdump-group/tcpdump/commit/24182d959f661327525a20d9a94c98a8ec016778",
                "target": {
                  "file": "smbutil.c",
                  "function": "smb_fdata"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-24T14:21:23Z"
          }
        }
      ],
      "modified": "2026-10-24T14:21:23.348158281Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ7SAQNMMJN/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQUULSGW7FN/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDXHH4QDSDMU/",
        "https://seclists.org/bugtraq/2019/Dec/23",
        "https://seclists.org/bugtraq/2019/Oct/28",
        "https://support.apple.com/kb/HT210788",
        "https://usn.ubuntu.com/4252-1/",
        "https://usn.ubuntu.com/4252-2/",
        "https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES",
        "https://security.netapp.com/advisory/ntap-20200120-0001/",
        "https://www.debian.org/security/2019/dsa-4547",
        "https://github.com/the-tcpdump-group/tcpdump/commit/24182d959f661327525a20d9a94c98a8ec016778"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "tcpdump:tcpdump",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "4.9.3"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-16452",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 443646,
  "published_at": "2019-10-03T16:15:12.803+00:00"
}