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CVE-2016-4346

Estado: ModificadaCrítica (9.8)—

Desbordamiento de entero en la función str_pad en ext/standard/string.c en PHP en versiones anteriores a 7.0.4 permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de una cadena larga, encabezando un desbordamiento de buffer basado en memoria dinámica.

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 (3)

Opensuse — LeapOpensuse — OpensusePHP — PHP

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2016-4346",
  "cveTags": [],
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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  "affected": [
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  "published": "2016-05-22T01:59:20.887",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-190"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the str_pad function in ext/standard/string.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long string, leading to a heap-based buffer overflow."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la función str_pad en ext/standard/string.c en PHP en versiones anteriores a 7.0.4 permite a atacantes remotos provocar una denegación de servicio o posiblemente tener otro impacto no especificado a través de una cadena larga, encabezando un desbordamiento de buffer basado en memoria dinámica."
    }
  ],
  "lastModified": "2026-06-17T00:47:23.313",
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}