A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions < 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "3.5.1"
},
{
"introduced": "4.0.0"
},
{
"last_affected": "4.1.3"
},
{
"introduced": "5.0.0"
},
{
"last_affected": "5.6.1"
},
{
"introduced": "6.0.0"
},
{
"last_affected": "6.1.2"
}
]
}