Cesanta Mongoose MQTT SUBSCRIBE Command Denial Of Service(CVE-2017-2893)

Summary An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT...

CVE-2017-2893

An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet ove...

CVE-2017-2893

CVE-2017-2893 affects Cesanta Mongoose 6.8 (MQTT server component). The vulnerability is a NULL pointer dereference in the MQTT SUBSCRIBE handling path (mg_mqtt_broker_handle_subscribe) caused by dereferencing an uninitialized or NULL session pointer (nc->user_data) when processing SUBSCRIBE t...