CVE-2023-3592 Denial of service in Mosquitto
Attackers can cause a memory leak and potential denial of service in the Mosquitto MQTT broker by sending malformed v5 CONNECT packets.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-3592?
CVE-2023-3592 is a medium-severity denial of service vulnerability in Eclipse Mosquitto, published on 2 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Mosquitto before 2.0.16, a memory leak occurs when clients send v5 CONNECT packets with a will message that contains invalid property types.
Weakness: CWE-401
Which versions are affected by CVE-2023-3592?
It affects 1 product.
Products include Eclipse Mosquitto.
How do I fix CVE-2023-3592?
Upgrade to a fixed version.
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-2023-3592 being exploited?
There is no known exploitation of CVE-2023-3592 in the wild and no public exploit code.
Other vulnerabilities in Eclipse Mosquitto
Sources
Also known as ALPINE-CVE-2023-3592, DEBIAN-CVE-2023-3592, GHSA-p7q8-377q-px25, OESA-2024-1022, OESA-2024-1026, OESA-2024-1028 and 1 more.