cve/2019/CVE-2019-17389.md

### [CVE-2019-17389](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17389)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

In RIOT 2019.07, the MQTT-SN implementation (asymcute) mishandles errors occurring during a read operation on a UDP socket. The receive loop ends. This allows an attacker (via a large packet) to prevent a RIOT MQTT-SN client from working until the device is restarted.

### POC

#### Reference
- https://github.com/RIOT-OS/RIOT/pull/12382

#### Github
No PoCs found on GitHub currently.