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CVE-2006-5051

Estado: ModificadaAlta (8.1)—💥 PoC

Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.

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 (4)

Apple — MAC OS XApple — MAC OS X ServerDebian — Debian LinuxOpenbsd — Openssh

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2006-5051",
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          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-415"
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      "lang": "en",
      "value": "Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free."
    },
    {
      "lang": "es",
      "value": "Condición de carrera en el manejador de señal OpenSSH en versiones anteriores a 4.4 permite a atacantes remotos provocar una denegación de servicio (caída) y posiblemente ejecutar código arbitrario si la autenticación GSSAPI está habilitada, a través de vectores no especificados que conducen a una doble liberación."
    }
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  "lastModified": "2026-06-16T22:30:24.127",
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      "comment": "Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.",
      "lastModified": "2007-03-14T00:00:00",
      "organization": "Red Hat"
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  "evaluatorImpact": "Successful code execution exploitation requires that GSSAPI authentication is enabled.",
  "sourceIdentifier": "secalert@redhat.com"
}