CVE-2007-4568

Estado: ModificadaMedia (6.8)—
Integer overflow in the build_range function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values, which triggers a heap-based buffer overflow.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Puntuación base: 6.8
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 3.98%
Percentil entre todas las CVEs puntuadas: 90
Fecha de la puntuación: 5/10/2026
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)

X.org — X Font Server
CWE

CWE-119, CWE-189
Referencias

JSON original (NVD)

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{
  "id": "CVE-2007-4568",
  "cveTags": [],
  "metrics": {
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-10-05T21:17:00.000",
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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-119"
        },
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the build_range function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values, which triggers a heap-based buffer overflow."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la función build_range de X.Org X Font Server (xfs) anterior a 1.0.5 permite a atacantes locales o remotos (dependiendo del contexto) ejecutar código de su elección a través de peticiones de protocolo (2) QueryXBitmaps y (2) QueryXExtents con valores de tamaño manipulados, lo cual dispara un desbordamiento de búfer basado en montículo."
    }
  ],
  "lastModified": "2026-06-16T22:44:20.697",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:x.org:x_font_server:1.0.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D69D4177-FCE4-41BC-9DCE-95EB1F9D2389"
            },
            {
              "criteria": "cpe:2.3:a:x.org:x_font_server:1.0.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "20F264B2-0D46-4527-9815-7F3C35CB8D51"
            },
            {
              "criteria": "cpe:2.3:a:x.org:x_font_server:1.0.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2F6D214E-6840-4E96-A301-ED5965F2A214"
            }
          ],
          "operator": "OR"
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      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2007-4568\n\nThe Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.",
      "lastModified": "2007-10-08T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}