CVE-2019-17389 Denial of service in n/a
An attacker can cause a denial of service in RIOT MQTT-SN clients by sending large packets, requiring a device restart to recover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-17389?
CVE-2019-17389 is a high-severity denial of service vulnerability in n/a, published on 9 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2019-17389?
It affects 1 product.
Products include Riot-Os Riot.
How do I fix CVE-2019-17389?
No fix has been published for CVE-2019-17389 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-17389 being exploited?
There is no known exploitation of CVE-2019-17389 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-52xj-gr8m-2fv8.