An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in mgmqttnextsubscribetopic. 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.
{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "6.13"
}
],
"cpe": "cpe:2.3:a:cesanta:mongoose:6.13:*:*:*:*:*:*:*",
"source": "CPE_STRING"
}