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CVE-2015-0803

Estado: ModificadaAlta (7.5)—

La función HTMLSourceElement::AfterSetAttr en Mozilla Firefox anterior a 37.0 no limita correctamente el tipo de datos originales de un valor asignado durante la configuración de los atributos de un elemento SOURCE, lo que permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (uso después de liberación) a través de un documento HTML manipulado.

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 LinuxMozilla — FirefoxOpensuse — Opensuse

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2015-0803",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-04-01T10:59:04.800",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00003.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-39.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1031996",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2550-1",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1134561",
      "source": "security@mozilla.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201512-10",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00003.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-39.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1031996",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2550-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1134561",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201512-10",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The HTMLSourceElement::AfterSetAttr function in Mozilla Firefox before 37.0 does not properly constrain the original data type of a casted value during the setting of a SOURCE element's attributes, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via a crafted HTML document."
    },
    {
      "lang": "es",
      "value": "La función HTMLSourceElement::AfterSetAttr en Mozilla Firefox anterior a 37.0 no limita correctamente el tipo de datos originales de un valor asignado durante la configuración de los atributos de un elemento SOURCE, lo que permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (uso después de liberación) a través de un documento HTML manipulado."
    }
  ],
  "lastModified": "2026-06-17T00:20:55.677",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
              "matchCriteriaId": "B6B7CAD7-9D4E-4FDB-88E3-1E583210A01F"
            },
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              "vulnerable": true,
              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
            },
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              "vulnerable": true,
              "matchCriteriaId": "49A63F39-30BE-443F-AF10-6245587D3359"
            }
          ],
          "operator": "OR"
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    },
    {
      "nodes": [
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          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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            },
            {
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              "matchCriteriaId": "03117DF1-3BEC-4B8D-AD63-DBBDB2126081"
            }
          ],
          "operator": "OR"
        }
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    },
    {
      "nodes": [
        {
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              "versionEndIncluding": "36.0.4"
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  ],
  "sourceIdentifier": "security@mozilla.org"
}