mosquitto: malicious MQTT sends SUBSCRIBE packet leads to stack over flow (CVE-2019-11779)
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
Fixed In Version:
mosquitto 1.5.9 and 1.6.6.