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{
"id": "CVE-2009-0749",
"sourceIdentifier": "cve@mitre.org",
"published": "2009-03-02T20:30:00.217",
"lastModified": "2017-08-17T01:30:00.350",
"vulnStatus": "Modified",
"descriptions": [
{
"lang": "en",
"value": "Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed."
},
{
"lang": "es",
"value": "Vulnerabilidad del tipo \"use-after-free\" (usar recurso despu\u00e9s de haberlo liberado o destruido) en la funci\u00f3n GIFReadNextExtension en lib/pngxtern/gif/gifread.c en OptiPNG v.0.6.2 y anteriores. Permite a atacantes dependientes del contexto causar una denegaci\u00f3n del servicio (indisponibilidad y ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de una imagen GIF manipulada que provoca que la llamada a la funci\u00f3n realloc devuelva un nuevo puntero, que causa una corrupci\u00f3n de memoria cuando se accede al viejo puntero."
}
],
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"vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
"accessVector": "NETWORK",
"accessComplexity": "MEDIUM",
"authentication": "NONE",
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"availabilityImpact": "COMPLETE",
"baseScore": 9.3
},
"baseSeverity": "HIGH",
"exploitabilityScore": 8.6,
"impactScore": 10.0,
"acInsufInfo": false,
"obtainAllPrivilege": true,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
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}
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{
"url": "http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html",
"source": "cve@mitre.org"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html",
"source": "cve@mitre.org"
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{
"url": "http://optipng.sourceforge.net",
"source": "cve@mitre.org",
"tags": [
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"url": "http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913",
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"url": "http://www.openwall.com/lists/oss-security/2009/02/24/2",
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}