CVE-2015-1804

Estado: ModificadaAlta (8.5)—
The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file.
CVSS

Versión: 2.0
Vector: AV:N/AC:M/Au:S/C:C/I:C/A:C
Puntuación base: 8.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 4.96%
Percentil entre todas las CVEs puntuadas: 92
Fecha de la puntuación: 3/10/2026
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 — Libxfont
CWE

CWE-189
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2015-1804",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 8.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-03-20T14:59:03.403",
  "references": [
    {
      "url": "http://advisories.mageia.org/MGASA-2015-0113.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152838.html",
      "source": "secalert@redhat.com"
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    {
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      "source": "secalert@redhat.com"
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      "url": "http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html",
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    {
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      "source": "secalert@redhat.com"
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    {
      "url": "http://www.securitytracker.com/id/1031935",
      "source": "secalert@redhat.com"
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    {
      "url": "http://www.ubuntu.com/usn/USN-2536-1",
      "source": "secalert@redhat.com"
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    {
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      "tags": [
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      "source": "secalert@redhat.com"
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    {
      "url": "https://security.gentoo.org/glsa/201507-21",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://advisories.mageia.org/MGASA-2015-0113.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152497.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00002.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securityfocus.com/bid/73279",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://www.securitytracker.com/id/1031935",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "http://www.ubuntu.com/usn/USN-2536-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.x.org/wiki/Development/Security/Advisory-2015-03-17/",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201507-21",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly perform type conversion for metrics values, which allows remote authenticated users to cause a denial of service (out-of-bounds memory access) and possibly execute arbitrary code via a crafted BDF font file."
    },
    {
      "lang": "es",
      "value": "La función bdfReadCharacters en bitmap/bdfread.c en X.Org libXfont anterior a 1.4.9 y 1.5.x anterior a 1.5.1 no realiza adecuadamente la conversión de tipos para valores métricos, lo que permite a usuarios remotos autenticados causar una denegación de servicio (acceso a memoria fuera de rango) y la posibilidad de ejecutar código arbitrario a través de archivos de fuente BDF."
    }
  ],
  "lastModified": "2026-06-17T00:23:02.160",
  "configurations": [
    {
      "nodes": [
        {
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  "sourceIdentifier": "secalert@redhat.com"
}