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CVE-2014-2038

Estado: ModificadaBaja (2.1)—

La función nfs_can_extend_write en fs/nfs/write.c en el kernel de Linux anterior a 3.13.3 se basa en una delegación de escritura para extender una operación de escritura sin cierta verificación actualizada, lo que permite a usuarios locales obtener información sensible de la memoria del kernel en circunstancias oportunistas mediante la escritura a un archivo en un sistema de archivos NFS y luego leyendo el mismo archivo.

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)

Canonical — Ubuntu LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2014-02-28T06:18:54.617",
  "references": [
    {
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=263b4509ec4d47e0da3e753f85a39ea12d1eff24",
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    {
      "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.3",
      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The nfs_can_extend_write function in fs/nfs/write.c in the Linux kernel before 3.13.3 relies on a write delegation to extend a write operation without a certain up-to-date verification, which allows local users to obtain sensitive information from kernel memory in opportunistic circumstances by writing to a file in an NFS filesystem and then reading the same file."
    },
    {
      "lang": "es",
      "value": "La función nfs_can_extend_write en fs/nfs/write.c en el kernel de Linux anterior a 3.13.3 se basa en una delegación de escritura para extender una operación de escritura sin cierta verificación actualizada, lo que permite a usuarios locales obtener información sensible de la memoria del kernel en circunstancias oportunistas mediante la escritura a un archivo en un sistema de archivos NFS y luego leyendo el mismo archivo."
    }
  ],
  "lastModified": "2026-06-17T00:05:58.303",
  "configurations": [
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