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CVE-2018-7584

Estado: ModificadaCrítica (9.8)—💥 Exploit

En PHP hasta la versión 5.6.33, versiones 7.0.x anteriores a la 7.0.28, versiones 7.1.x hasta la 7.1.14 y versiones 7.2.x hasta la 7.2.2, hay una sublectura de búfer basada en pila al analizar una respuesta HTTP en la función php_stream_url_wrap_http_ex en ext/standard/http_fopen_wrapper.c. Esto resulta en la copia de una cadena larga.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-7584",
  "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"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 3.9
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  "published": "2018-03-01T19:29:00.293",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
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      "lang": "en",
      "value": "In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while parsing an HTTP response in the php_stream_url_wrap_http_ex function in ext/standard/http_fopen_wrapper.c. This subsequently results in copying a large string."
    },
    {
      "lang": "es",
      "value": "En PHP hasta la versión 5.6.33, versiones 7.0.x anteriores a la 7.0.28, versiones 7.1.x hasta la 7.1.14 y versiones 7.2.x hasta la 7.2.2, hay una sublectura de búfer basada en pila al analizar una respuesta HTTP en la función php_stream_url_wrap_http_ex en ext/standard/http_fopen_wrapper.c. Esto resulta en la copia de una cadena larga."
    }
  ],
  "lastModified": "2026-06-17T02:03:25.057",
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