CVE-2024-4599 Denial of service vulnerability in LAN Messenger

High 7.5 Published Updated

An attacker can crash the LAN Messenger service by sending long strings over UDP, causing a denial of service.

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-2024-4599?

CVE-2024-4599 is a high-severity denial of service vulnerability in LAN Messenger, published on 7 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Remote denial of service vulnerability in LAN Messenger affecting version 3.4.0. This vulnerability allows an attacker to crash the LAN Messenger service by sending a long string directly and continuously over the UDP protocol.

Weakness: CWE-400

Which versions are affected by CVE-2024-4599?

How do I fix CVE-2024-4599?

No fix has been published for CVE-2024-4599 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-2024-4599 being exploited?

There is no known exploitation of CVE-2024-4599 in the wild and no public exploit code.

Sources

Also known as GHSA-6hpj-m38r-374m.

Is CVE-2024-4599 in your software?

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