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CVE-2016-4342

Estado: ModificadaAlta (8.8)—

ext/phar/phar_object.c en PHP en versiones anteriores a 5.5.32, 5.6.x en versiones anteriores a 5.6.18 y 7.x en versiones anteriores a 7.0.3 no maneja correctamente los datos sin comprimir de longitud cero, lo que permite a atacantes remotos provocar una denegación de servicio (corrupción de la memoria dinámica) o posiblemente tener otro impacto no especificado a través de un archivo (1) TAR, (2) ZIP o (3) PHAR manipulado.

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)

Opensuse — LeapPHP — PHP

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-4342",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 8.5,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
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  "affected": [
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      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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  "published": "2016-05-22T01:59:16.337",
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      "url": "http://php.net/ChangeLog-5.php",
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    {
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    },
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    },
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      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html",
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    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://php.net/ChangeLog-5.php",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    },
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
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      "lang": "en",
      "value": "ext/phar/phar_object.c in PHP before 5.5.32, 5.6.x before 5.6.18, and 7.x before 7.0.3 mishandles zero-length uncompressed data, which allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a crafted (1) TAR, (2) ZIP, or (3) PHAR archive."
    },
    {
      "lang": "es",
      "value": "ext/phar/phar_object.c en PHP en versiones anteriores a 5.5.32, 5.6.x en versiones anteriores a 5.6.18 y 7.x en versiones anteriores a 7.0.3 no maneja correctamente los datos sin comprimir de longitud cero, lo que permite a atacantes remotos provocar una denegación de servicio (corrupción de la memoria dinámica) o posiblemente tener otro impacto no especificado a través de un archivo (1) TAR, (2) ZIP o (3) PHAR manipulado."
    }
  ],
  "lastModified": "2026-06-17T00:47:22.790",
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