CVE-2022-39837 Null dereference in n/a

Medium 5.5 Published 24 Oct 2022 Updated 7 May 2025

A crafted DLT file causes a NULL pointer dereference in the dlt-daemon, leading to a denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2022-39837?

CVE-2022-39837 is a medium-severity vulnerability in n/a, published on 24 Oct 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8. Due to a faulty DLT file parser, a crafted DLT file that crashes the process can be created. This is due to missing validation checks. There is a NULL pointer dereference,

Weakness: CWE-476

Which versions are affected by CVE-2022-39837?

It affects 1 product.

Products include Genivi Diagnostic Log and Trace.

How do I fix CVE-2022-39837?

Upgrade to a fixed version.

Is CVE-2022-39837 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-39837 exists.

Sources

Also known as DEBIAN-CVE-2022-39837, GHSA-6855-rwxj-9xgr, UBUNTU-CVE-2022-39837.