Security advisory

{
  "id": "a8e572f62b184ec9337c6052e2e5287233ad22235fd245a5b660feaf64377acf",
  "url": "https://osv.dev/vulnerability/CVE-2019-15163",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-15163",
    "summary": "rpcapd/daemon.c in libpcap before 1.9.1 allows attackers to cause a denial of service (NULL pointer dereference and daemon crash) if a crypt() call fails.",
    "evidence": "osv:CVE-2019-15163",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-15163",
      "aliases": [
        "CVE-2019-15163"
      ],
      "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/libpcap",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d396f255cf7b96a09cf91d0e8cc94d23777d6986"
                },
                {
                  "fixed": "437b273761adedcbd880f714bfa44afeec186a31"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.9.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "437b273761adedcbd880f714bfa44afeec186a31"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "libpcap-1.9.0",
            "libpcap-1.9.0rc2",
            "libpcap-1.9-bp",
            "libpcap-1.9.0-rc1",
            "libpcap-1.8.1",
            "libpcap-1.8.0-bp",
            "libpcap-1.7.0-bp",
            "libpcap-0.8-bp",
            "libpcap-0.7.1",
            "libpcap-0.6.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15163.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-15163-0159ef4e",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "307748217924625400423163628034066080518",
                    "207627471226929980974177576761789405620",
                    "324057952688139616317352615586617493494",
                    "85884055634276576242239882593460915813",
                    "53212736245745792959456481649127788649",
                    "109100305614371195534484352722895782370",
                    "232355268960275921028358747977642145909",
                    "272092355253707617931565301784483312151"
                  ]
                },
                "source": "https://github.com/the-tcpdump-group/libpcap/commit/437b273761adedcbd880f714bfa44afeec186a31",
                "target": {
                  "file": "rpcapd/daemon.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-15163-ee6ad087",
                "digest": {
                  "length": 1387,
                  "function_hash": "91313662920374083049208353129361244258"
                },
                "source": "https://github.com/the-tcpdump-group/libpcap/commit/437b273761adedcbd880f714bfa44afeec186a31",
                "target": {
                  "file": "rpcapd/daemon.c",
                  "function": "daemon_AuthUserPwd"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:40:37Z"
          }
        }
      ],
      "modified": "2026-10-20T13:40:37.046887789Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5P5K3DQ4TFSZBDB3XN4CZNJNQ3UIF3D3/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GBIEKWLNIR62KZ5GA7EDXZS52HU6OE5F/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UZTIPUWABYUE5KQOLCKAW65AUUSB7QO6/",
        "https://seclists.org/bugtraq/2019/Dec/23",
        "https://support.apple.com/kb/HT210785",
        "https://support.apple.com/kb/HT210788",
        "https://support.apple.com/kb/HT210789",
        "https://support.apple.com/kb/HT210790",
        "https://support.f5.com/csp/article/K92862401?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://www.oracle.com/security-alerts/cpuapr2020.html",
        "https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES",
        "https://www.tcpdump.org/public-cve-list.txt",
        "https://github.com/the-tcpdump-group/libpcap/commit/437b273761adedcbd880f714bfa44afeec186a31"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-15163",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387944,
  "published_at": "2019-10-03T19:15:09.363+00:00"
}