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CVE-2016-3705

Estado: ModificadaAlta (7.5)—

The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references.

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 (6)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2016-3705",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
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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"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
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        "userInteractionRequired": false
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "affected": [
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      "affectedData": [
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          "versions": [
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  "published": "2016-05-17T14:08:04.593",
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          "value": "CWE-20"
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      "value": "The (1) xmlParserEntityCheck and (2) xmlParseAttValueComplex functions in parser.c in libxml2 2.9.3 do not properly keep track of the recursion depth, which allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a crafted XML document containing a large number of nested entity references."
    },
    {
      "lang": "es",
      "value": "Las funciones (1) xmlParserEntityCheck y (2) xmlParseAttValueComplex en parser.c en libxml2 2.9.3 no hace seguimiento de manera adecuada de la profundidad de recursividad, lo que permite a atacantes dependientes del contexto provocar una denegación de servicio (consumo de pila y caída de la aplicación) a través de un documento XML manipulado que contiene un gran número de referencias de entidades anidadas."
    }
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  "lastModified": "2026-06-17T00:46:13.220",
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