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CVE-2011-2689

Estado: ModificadaMedia (4.9)—

La función gfs2_fallocate en fs/gfs2/file.c en el kernel de Linux anterior a v3.0-rc1 no garantiza que el tamaño de un trozo de asignación sea un múltiplo del tamaño de bloque, lo que permite a usuarios locales provocar una denegación de servicio (BUG y caída del sistema) mediante la organización de todos los grupos de recursos para tener un espacio libre muy reducido.

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 (4)

CWE

Referencias

JSON original (NVD)

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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "published": "2011-07-28T22:55:02.580",
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          "value": "CWE-400"
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      "value": "The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the size of a chunk allocation is a multiple of the block size, which allows local users to cause a denial of service (BUG and system crash) by arranging for all resource groups to have too little free space."
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  "lastModified": "2026-06-16T23:31:48.107",
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