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CVE-2011-4566

Estado: ModificadaMedia (6.4)—

Un desbordamiento de entero en la función exif_process_IFD_TAG en el fichero exif.c de la extensión exif de PHP v5.4.0 beta2 en las plataformas de 32 bits permite a atacantes remotos leer los contenidos de ubicaciones de memoria aleatorias o causar una denegación de servicio a través de un valor de offset_val concreto en una cabecera EXIF en un archivo JPEG. Se trata de una vulnerabilidad diferente a CVE-2.011-0708.

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)

Canonical — Ubuntu LinuxDebian — Debian LinuxPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2011-4566",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "affected": [
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      "affectedData": [
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          "product": "n/a",
          "versions": [
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              "version": "n/a"
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    }
  ],
  "published": "2011-11-29T00:55:01.750",
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      "description": [
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          "lang": "en",
          "value": "CWE-189"
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      "lang": "en",
      "value": "Integer overflow in the exif_process_IFD_TAG function in exif.c in the exif extension in PHP 5.4.0beta2 on 32-bit platforms allows remote attackers to read the contents of arbitrary memory locations or cause a denial of service via a crafted offset_val value in an EXIF header in a JPEG file, a different vulnerability than CVE-2011-0708."
    },
    {
      "lang": "es",
      "value": "Un desbordamiento de entero en la función exif_process_IFD_TAG en el fichero exif.c de la extensión exif de PHP v5.4.0 beta2 en las plataformas de 32 bits permite a atacantes remotos leer los contenidos de ubicaciones de memoria aleatorias o causar una denegación de servicio a través de un valor de offset_val concreto en una cabecera EXIF en un archivo JPEG. Se trata de una vulnerabilidad diferente a CVE-2.011-0708."
    }
  ],
  "lastModified": "2026-06-16T23:35:03.397",
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  "evaluatorImpact": "Per: https://bugs.php.net/bug.php?id=60150\n\n'The bug is only present in 32 bits version.'",
  "sourceIdentifier": "cve@mitre.org"
}