Security advisory

{
  "id": "e7ecd555af262744a0808822cd3e187cba4be7611f7d16e2a9c87be4ea1fc7ec",
  "url": "https://osv.dev/vulnerability/CVE-2018-19519",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19519",
    "summary": "In tcpdump 4.9.2, a stack-based buffer over-read exists in the print_prefix function of print-hncp.c via crafted packet data because of missing initialization.",
    "evidence": "osv:CVE-2018-19519",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-19519",
      "aliases": [
        "CVE-2018-19519"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/the-tcpdump-group/tcpdump",
              "type": "GIT",
              "events": [
                {
                  "introduced": "dda68e7bd631451189152e91e7d3a93d56994a95"
                },
                {
                  "last_affected": "dda68e7bd631451189152e91e7d3a93d56994a95"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tcpdump:tcpdump:4.9.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.9.2"
                      },
                      {
                        "last_affected": "4.9.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.9.2",
            "tcpdump-4.9.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19519.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:31.439985544Z",
      "provider": "osv",
      "references": [
        "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44516",
        "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://usn.ubuntu.com/4252-1/",
        "https://usn.ubuntu.com/4252-2/",
        "https://access.redhat.com/errata/RHSA-2019:3976",
        "https://github.com/zyingp/temp/blob/master/tcpdump.md"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:tcpdump:tcpdump:4.9.2:*:*:*:*:*:*:*"
            ],
            "vendor_product": "tcpdump:tcpdump",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "4.9.2"
                  },
                  {
                    "last_affected": "4.9.2"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-19519",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 432801,
  "published_at": "2018-11-25T20:29:00.273+00:00"
}