CVE-2022-47517 Memory corruption in n/a

High 7.5 Published 18 Dec 2022 Updated 17 Apr 2025

Remote attackers can crash the drachtio-server daemon via a crafted UDP message causing a heap-based buffer over-read.

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-2022-47517?

CVE-2022-47517 is a high-severity memory corruption 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 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one error.

Weakness: CWE-193

Which versions are affected by CVE-2022-47517?

It affects 1 product.

Products include Drachtio Drachtio-Server.

How do I fix CVE-2022-47517?

No fix has been published for CVE-2022-47517 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-47517 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-47517 exists.

Sources

Also known as GHSA-c8mq-83h4-gm57.