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CVE-2017-7479

Estado: ModificadaMedia (6.5)—

OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker.

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)

Openvpn — Openvpn

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-7479",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "OpenVPN Technologies, Inc",
          "product": "openvpn",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.3.15"
            },
            {
              "status": "affected",
              "version": "< 2.4.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-05-15T18:29:00.340",
  "references": [
    {
      "url": "http://www.debian.org/security/2017/dsa-3900",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98443",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1038473",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3900",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/98443",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1038473",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://community.openvpn.net/openvpn/wiki/QuarkslabAndCryptographyEngineerAudits",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-617"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "OpenVPN versions before 2.3.15 and before 2.4.2 are vulnerable to reachable assertion when packet-ID counter rolls over resulting into Denial of Service of server by authenticated attacker."
    },
    {
      "lang": "es",
      "value": "OpenVPN versiones anteriores a 2.3.15 y anteriores a 2.4.2, son vulnerables a una aserción alcanzable cuando el contador del identificador de paquete se devuelve como resultado de una denegación de servicio del servidor por parte de un atacante autenticado."
    }
  ],
  "lastModified": "2026-06-17T01:24:25.843",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2B92389B-7815-40EC-AA21-14154621BFAC",
              "versionEndIncluding": "2.3.14"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "84F5C67A-34A4-4C7E-BCA9-AF3E5FC70AF6"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:alpha2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A857CA88-60B0-4D34-87B6-770B67981501"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:beta1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B42297EE-B347-4BD8-A657-BDF0AA010C06"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:beta2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7C7A56E8-09C8-4DB2-9244-9E5E2BEC1821"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "41ACD637-EF6B-40E4-BDE6-0EE7D6AEBAD4"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.0:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A4150AD-3F46-487D-BCF8-79D0AE2A092D"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.4.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E7F7663E-3EB5-44F4-B7DE-294A549A12BE"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}