CVE-2022-47516 Denial of service in n/a

High 7.5 Published 18 Dec 2022 Updated 17 Apr 2025

Remote attackers can crash the drachtio-server daemon by sending a crafted UDP message, 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: Available

What is CVE-2022-47516?

CVE-2022-47516 is a high-severity denial of service vulnerability in n/a, published on 18 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.20. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that leads to a failure of the libsofia-sip-ua/tport/tport.c self assertion.

Weakness: CWE-617

Which versions are affected by CVE-2022-47516?

It affects 1 product.

Products include Drachtio Drachtio-Server.

How do I fix CVE-2022-47516?

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-2022-47516 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-47516 exists.

Sources

Also known as DEBIAN-CVE-2022-47516, DLA-3334-1, GHSA-w32h-m3r8-mq4c, MGASA-2023-0072, UBUNTU-CVE-2022-47516.