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CVE-2009-1633

Estado: ModificadaAlta (7.1)—

Múltiples desbordamientos de búfer en el subsistema cifs en el kernel de Linux anterior a v2.6.29.4 permite a servidores remotos CIFS provocar una denegación de servicio (corrupción de memoria) y posiblemente tener otros impactos sin identificar a través de (1) una cadena Unicode mal formada, relacionado con el área de alineación de cadena Unicode en fs/cifs/sess.c; o (2) carateres largos _Unicode, relacionado con fs/cifs/cifssmb.c y la función cifs_readdir en fs/cifs/readdir.c.

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 (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-1633",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2009-05-28T20:30:00.233",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple buffer overflows in the cifs subsystem in the Linux kernel before 2.6.29.4 allow remote CIFS servers to cause a denial of service (memory corruption) and possibly have unspecified other impact via (1) a malformed Unicode string, related to Unicode string area alignment in fs/cifs/sess.c; or (2) long Unicode characters, related to fs/cifs/cifssmb.c and the cifs_readdir function in fs/cifs/readdir.c."
    },
    {
      "lang": "es",
      "value": "Múltiples desbordamientos de búfer en el subsistema cifs en el kernel de Linux anterior a v2.6.29.4  permite a servidores remotos CIFS provocar una denegación de servicio (corrupción de memoria) y posiblemente tener otros impactos sin identificar a través de (1) una cadena Unicode mal formada, relacionado con el área de alineación de cadena Unicode en fs/cifs/sess.c; o (2) carateres largos _Unicode, relacionado con fs/cifs/cifssmb.c y la función cifs_readdir en fs/cifs/readdir.c."
    }
  ],
  "lastModified": "2026-06-16T23:07:41.070",
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            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4747CC68-FAF4-482F-929A-9DA6C24CB663"
            },
            {
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, and 3.\n\nIt was addressed in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2009-1211.html , https://rhn.redhat.com/errata/RHSA-2009-1106.html , and https://rhn.redhat.com/errata/RHSA-2009-1157.html .",
      "lastModified": "2009-09-10T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}