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CVE-2017-7472

Estado: ModificadaMedia (5.5)—Exploit
Gravedad5.5Media · CVSS 3.0
Probabilidad de explotación2.26 %mayor que el 83 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePublicado en Exploit-DB · Prueba de concepto en GitHub (no verificada)

El subsistema KEYS en el kernel de Linux anterior a 4.10.13 permite a los usuarios locales causar una denegación de servicio (consumo de memoria) a través de una serie de llamadas KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring.

CVSS

Puntuación base
5.5
Versión
3.0
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
2.26 %
Percentil entre todas las CVEs puntuadas
83
Fecha de la puntuación
20/10/2026

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 (1)

Linux — Linux Kernel

CWE

Referencias

Mostrar las 30 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2017-7472",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
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        },
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        "exploitabilityScore": 1.8
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  },
  "affected": [
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      "url": "https://lkml.org/lkml/2017/4/3/724",
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-404"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls."
    },
    {
      "lang": "es",
      "value": "El subsistema KEYS en el kernel de Linux anterior a 4.10.13 permite a los usuarios locales causar una denegación de servicio (consumo de memoria) a través de una serie de llamadas KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring."
    }
  ],
  "lastModified": "2026-06-17T01:24:25.073",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "A1467C00-A66E-4711-9C37-A5FE885B7BA6",
              "versionEndIncluding": "4.10.12"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "secalert@redhat.com"
}