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CVE-2024-8006

Estado: AnalizadaMedia (4.4)—

Remote packet capture support is disabled by default in libpcap. When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex(). One of the function arguments can be a filesystem path, which normally means a directory with input data files. When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Tcpdump — Libpcap

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-8006",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-8006",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-03T19:17:39.415802Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@tcpdump.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@tcpdump.org",
      "affectedData": [
        {
          "repo": "https://github.com/the-tcpdump-group/libpcap/",
          "vendor": "The Tcpdump Group",
          "modules": [
            "remote packet capture"
          ],
          "product": "libpcap",
          "versions": [
            {
              "status": "affected",
              "version": "1.9.x"
            },
            {
              "status": "affected",
              "version": "1.10.x",
              "versionType": "semver",
              "lessThanOrEqual": "1.10.4"
            }
          ],
          "defaultStatus": "unaffected",
          "programRoutines": [
            {
              "name": "pcap_findalldevs_ex()"
            }
          ]
        }
      ]
    }
  ],
  "published": "2024-08-31T00:15:05.743",
  "references": [
    {
      "url": "https://github.com/the-tcpdump-group/libpcap/commit/0f8a103469ce87d2b8d68c5130a46ddb7fb5eb29",
      "tags": [
        "Patch"
      ],
      "source": "security@tcpdump.org"
    },
    {
      "url": "https://github.com/the-tcpdump-group/libpcap/commit/8a633ee5b9ecd9d38a587ac9b204e2380713b0d6",
      "tags": [
        "Patch"
      ],
      "source": "security@tcpdump.org"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@tcpdump.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Remote packet capture support is disabled by default in libpcap.  When a user builds libpcap with remote packet capture support enabled, one of the functions that become available is pcap_findalldevs_ex().  One of the function arguments can be a filesystem path, which normally means a directory with input data files.  When the specified path cannot be used as a directory, the function receives NULL from opendir(), but does not check the return value and passes the NULL value to readdir(), which causes a NULL pointer derefence."
    },
    {
      "lang": "es",
      "value": "La compatibilidad con captura remota de paquetes está deshabilitada de forma predeterminada en libpcap. Cuando un usuario compila libpcap con la compatibilidad con captura remota de paquetes habilitada, una de las funciones que se vuelven disponibles es pcap_findalldevs_ex(). Uno de los argumentos de la función puede ser una ruta del sistema de archivos, que normalmente significa un directorio con archivos de datos de entrada. Cuando la ruta especificada no se puede usar como directorio, la función recibe NULL de opendir(), pero no verifica el valor de retorno y pasa el valor NULL a readdir(), lo que provoca una desreferencia del puntero NULL."
    }
  ],
  "lastModified": "2026-06-17T08:21:39.470",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tcpdump:libpcap:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "83511DB8-7FA5-4C5D-8E9D-B6310A1006C4",
              "versionEndExcluding": "1.10.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@tcpdump.org"
}