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CVE-2019-15918

Estado: ModificadaAlta (7.8)—

Se detectó un problema en el kernel de Linux versiones anteriores a 5.0.10. La función SMB2_negotiate en el archivo fs/cifs/smb2pdu.c presenta una lectura fuera de límites porque las estructuras de datos son actualizadas de manera incompleta después de un cambio desde smb30 hacia smb21.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2019-15918",
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          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
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      "affectedData": [
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          "versions": [
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              "status": "affected",
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  "published": "2019-09-04T19:15:12.003",
  "references": [
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      "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-125"
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      "value": "An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21."
    },
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    }
  ],
  "lastModified": "2026-06-17T02:21:19.730",
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