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CVE-2014-1560

Estado: ModificadaMedia (4.3)—

Mozilla Firefox anterior a 31.0 y Thunderbird anterior a 31.0 permiten a atacantes remotos causar una denegación de servicio (interrupción del análisis sintáctico de certificados X.509) a través de un certificado manipulado que no utilice la codificación de caracteres ASCII en un contexto requerido.

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 (2)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-1560",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-07-23T11:12:43.370",
  "references": [
    {
      "url": "http://secunia.com/advisories/60628",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2014/mfsa2014-65.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1030619",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1030620",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=997795",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201504-01",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://secunia.com/advisories/60628",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2014/mfsa2014-65.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1030619",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1030620",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=997795",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201504-01",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Firefox before 31.0 and Thunderbird before 31.0 allow remote attackers to cause a denial of service (X.509 certificate parsing outage) via a crafted certificate that does not use ASCII character encoding in a required context."
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox anterior a 31.0 y Thunderbird anterior a 31.0 permiten a atacantes remotos causar una denegación de servicio (interrupción del análisis sintáctico de certificados X.509) a través de un certificado manipulado que no utilice la codificación de caracteres ASCII en un contexto requerido."
    }
  ],
  "lastModified": "2026-06-17T00:05:09.767",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndIncluding": "30.0"
            },
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          "operator": "OR"
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  ],
  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/176.html\" target=\"_blank\">CWE-176: CWE-176: Improper Handling of Unicode Encoding</a>",
  "sourceIdentifier": "security@mozilla.org"
}