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CVE-2007-3721

Estado: ModificadaBaja (2.1)—

The ULE process scheduler in the FreeBSD kernel gives preference to "interactive" processes that perform voluntary sleeps, which allows local users to cause a denial of service (CPU consumption), as described in "Secretly Monopolizing the CPU Without Superuser Privileges."

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 (1)

Freebsd — Freebsd

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2007-3721",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "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": "2007-07-12T16:30:00.000",
  "references": [
    {
      "url": "http://osvdb.org/39598",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.cs.huji.ac.il/~dants/papers/Cheat07Security.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/39598",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.cs.huji.ac.il/~dants/papers/Cheat07Security.pdf",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ULE process scheduler in the FreeBSD kernel gives preference to \"interactive\" processes that perform voluntary sleeps, which allows local users to cause a denial of service (CPU consumption), as described in \"Secretly Monopolizing the CPU Without Superuser Privileges.\""
    },
    {
      "lang": "es",
      "value": "El programador de procesos ULE en el núcleo de FreeBSD le da preferencia a procesos \"interactivos\" que realizan esperas voluntarias (sleeps), lo cual permite a usuarios locales provocar una denegación de servicio (agotamiento de CPU), como se ha descrito en \"Monopolizando Secretamente la CPU sin Privilegios de Superusuario\" (Secretly Monopolizing the CPU Without Superuser Privileges)."
    }
  ],
  "lastModified": "2026-06-16T22:42:35.673",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D9EC02F3-3905-460D-8949-3B26394215CA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}