An exploitable arbitrary memory read vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.
The product reads data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0402 | third party advisory technical description |