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CVE-2014-4720

Estado: ModificadaMedia (5)—

El módulo Email::Address anterior a 1.904 para Perl utiliza una expresión regular ineficiente, lo que permite a atacantes remotos causar una denegación de servicio (consumo de CPU) a través de vectores relacionados con 'retroceso hacia la frase,' una vulnerabilidad diferente a CVE-2014-0477.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2014-4720",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  ],
  "published": "2014-07-06T23:55:02.050",
  "references": [
    {
      "url": "http://seclists.org/oss-sec/2014/q2/563",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/rjbs/Email-Address/blob/master/Changes",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://seclists.org/oss-sec/2014/q2/563",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/rjbs/Email-Address/blob/master/Changes",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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          "lang": "en",
          "value": "NVD-CWE-Other"
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      "value": "Email::Address module before 1.904 for Perl uses an inefficient regular expression, which allows remote attackers to cause a denial of service (CPU consumption) via vectors related to \"backtracking into the phrase,\" a different vulnerability than CVE-2014-0477."
    },
    {
      "lang": "es",
      "value": "El módulo Email::Address anterior a 1.904 para Perl utiliza una expresión regular ineficiente, lo que permite a atacantes remotos causar una denegación de servicio (consumo de CPU) a través de vectores relacionados con 'retroceso hacia la frase,' una vulnerabilidad diferente a CVE-2014-0477."
    }
  ],
  "lastModified": "2026-06-17T00:10:30.390",
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  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/185.html\" target=\"_blank\">CWE-185: CWE-185: Incorrect Regular Expression</a>",
  "sourceIdentifier": "cve@mitre.org"
}