CVE-2018-0102

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Cisco Bug IDs: CSCuv98660."}, {"lang": "es", "value": "Una vulnerabilidad en la herramienta Pong de Cisco NX-OS Software podr\u00eda permitir que un atacante adyacente sin autenticar haga que el dispositivo afectado se reinicie y provoque una denegaci\u00f3n de servicio (DoS) como consecuencia. La vulnerabilidad existe porque el software afectado intenta liberar la misma \u00e1rea de memoria dos veces. Un atacante podr\u00eda explotar esta vulnerabilidad enviando una petici\u00f3n pong a un dispositivo afectado desde una ubicaci\u00f3n en la red que provoca que el paquete de respuesta pong salga tanto de un puerto FabricPath como de un puerto no FabricPath. Su explotaci\u00f3n podr\u00eda permitir que el atacante haga que se reinicie el vPC (Virtural port-channel) supervisor dual o quad. Esta vulnerabilidad afecta a los siguientes productos cuando ejecutan versiones de software Cisco NX-OS 7.2(1)D(1), 7.2(2)D1(1) o 7.2(2)D1(2) con las caracter\u00edsticas Pong y FabricPath activadas y el puerto FabricPath es monitorizado activamente en una sesi\u00f3n SPAN: Cisco Nexus 7000 Series Switches y Cisco Nexus 7700 Series Switches. 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