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CVE-2023-3824

Estado: ModificadaCrítica (9.8)—💥 PoC

En PHP versión 8.0.* antes de 8.0.30, 8.1.* antes de 8.1.22, y 8.2.* antes de 8.2.8, al cargar el archivo phar, mientras se leen las entradas del directorio PHAR, una comprobación de longitud insuficiente puede conducir a un desbordamiento del búfer de pila, llevando potencialmente a corrupción de memoria o RCE.

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.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (3)

Debian — Debian LinuxFedoraproject — FedoraPHP — PHP

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2023-3824",
  "cveTags": [],
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        "type": "Secondary",
        "source": "security@php.net",
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          "version": "3.1",
          "baseScore": 9.4,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.5,
        "exploitabilityScore": 3.9
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
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      "source": "security@php.net",
      "affectedData": [
        {
          "vendor": "PHP Group",
          "product": "PHP",
          "versions": [
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  "published": "2023-08-11T06:15:10.560",
  "references": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-119"
        }
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    },
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      "value": "In PHP version 8.0.* before 8.0.30,  8.1.* before 8.1.22, and 8.2.* before 8.2.8, when loading phar file, while reading PHAR directory entries, insufficient length checking may lead to a stack buffer overflow, leading potentially to memory corruption or RCE."
    },
    {
      "lang": "es",
      "value": "En PHP versión 8.0.* antes de 8.0.30, 8.1.* antes de 8.1.22, y 8.2.* antes de 8.2.8, al cargar el archivo phar, mientras se leen las entradas del directorio PHAR, una comprobación de longitud insuficiente puede conducir a un desbordamiento del búfer de pila, llevando potencialmente a corrupción de memoria o RCE."
    }
  ],
  "lastModified": "2026-06-17T06:14:56.127",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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              "vulnerable": true,
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}