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CVE-2011-2525

Estado: ModificadaAlta (7.8)—

La función qdisc_notify de net/sched/sch_api.c del kernel de Linux en versiones anteriores a la 2.6.35 no previene que la función tc_fill_qdisc haga referencia a estructuras Qdisc (CQ_F_BUILTIN) pre-construídas, lo que permite a usuarios locales provocar una denegación de servicio (resolución de puntero NULL y OOPS) o posiblemente tener otros impactos sin especificar a través de una llamada modificada.

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).

Tecnologías afectadas (2)

Linux — Linux KernelRedhat — Enterprise Linux

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2011-2525",
  "cveTags": [],
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
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          "versions": [
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              "status": "affected",
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  "published": "2012-02-02T04:09:47.737",
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      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53b0f08042f04813cd1a7473dacd3edfacb28eb3",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-476"
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      "lang": "en",
      "value": "The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call."
    },
    {
      "lang": "es",
      "value": "La función qdisc_notify de net/sched/sch_api.c del kernel de Linux en versiones anteriores a la 2.6.35 no previene que la función tc_fill_qdisc haga referencia a estructuras  Qdisc (CQ_F_BUILTIN) pre-construídas, lo que permite a usuarios locales provocar una denegación de servicio (resolución de puntero NULL y OOPS) o posiblemente tener otros impactos sin especificar a través de una llamada modificada."
    }
  ],
  "lastModified": "2026-06-16T23:31:30.943",
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