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CVE-2017-15649

Estado: ModificadaAlta (7.8)—Exploit
Gravedad7.8Alta · CVSS 3.0
Probabilidad de explotación0.96 %mayor que el 61 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePublicado en Exploit-DB

net/packet/af_packet.c en versiones anteriores a la 4.13.6 del kernel de Linux permite que usuarios locales obtengan privilegios mediante llamadas manipuladas al sistema que dan lugar a una gestión incorrecta de las estructuras de datos packet_fanout. Esto se debe a una condición de carrera (que afecta a fanout_add y packet_do_bind) que da lugar a un uso de memoria previamente liberada. Esta vulnerabilidad es diferente de CVE-2017-6346.

CVSS

Puntuación base
7.8
Versión
3.0
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.96 %
Percentil entre todas las CVEs puntuadas
61
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.

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

Mostrar las 28 referencias

JSON original (NVD)

Mostrar
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      "description": [
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          "value": "CWE-362"
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    {
      "lang": "en",
      "value": "net/packet/af_packet.c in the Linux kernel before 4.13.6 allows local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346."
    },
    {
      "lang": "es",
      "value": "net/packet/af_packet.c en versiones anteriores a la 4.13.6 del kernel de Linux permite que usuarios locales obtengan privilegios mediante llamadas manipuladas al sistema que dan lugar a una gestión incorrecta de las estructuras de datos packet_fanout. Esto se debe a una condición de carrera (que afecta a fanout_add y packet_do_bind) que da lugar a un uso de memoria previamente liberada. Esta vulnerabilidad es diferente de CVE-2017-6346."
    }
  ],
  "lastModified": "2026-06-17T01:08:03.240",
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}