CVE-2018-0151

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Cisco Bug IDs: CSCvf73881."}, {"lang": "es", "value": "Una vulnerabilidad en el subsistema \"quality of service\" (QoS) de Cisco IOS Software y Cisco IOS XE Software podr\u00eda permitir que un atacante remoto no autenticado provoque una denegaci\u00f3n de servicio (DoS) o ejecute c\u00f3digo arbitrario con privilegios elevados. Esta vulnerabilidad se debe a una verificaci\u00f3n incorrecta de l\u00edmites de determinados valores en paquetes que est\u00e1n destinados al puerto 18999 UDP de un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes maliciosos a un dispositivo afectado. Al procesar los paquetes se puede dar una situaci\u00f3n explotable de desbordamiento de b\u00fafer. Un exploit con \u00e9xito podr\u00eda permitir que el atacante ejecute c\u00f3digo arbitrario en el dispositivo afectado con privilegios elevados. El atacante tambi\u00e9n podr\u00eda aprovechar esta vulnerabilidad para hacer que el dispositivo se reinicie, provocando una denegaci\u00f3n de servicio (DoS) temporal mientras el dispositivo se reinicia. Los paquetes maliciosos tienen que ir destinados a un dispositivo afectado y estar procesados por \u00e9l. El tr\u00e1fico que transita en un dispositivo no dar\u00e1 lugar a la vulnerabilidad. 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