CVE-2024-38921 Use after free in n/a

Critical 9.8 Published 6 Dec 2024 Updated 11 Dec 2024

A use-after-free in ROS2 Nav2 allows remote attackers to trigger crashes or execute code via dynamic parameter requests.

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-2024-38921?

CVE-2024-38921 is a critical use after free vulnerability in n/a, published on 6 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Open Robotics Robotic Operating System 2 (ROS2) and Nav2 humble versions were discovered to contain a use-after-free via the nav2_amcl process. This vulnerability is triggered via remotely sending a request for change the value of dynamic-parameter`/amcl z_rand ` .

Weakness: CWE-416

Which versions are affected by CVE-2024-38921?

It affects 1 product.

Products include Openrobotics Robot Operating System.

How do I fix CVE-2024-38921?

No fix has been published for CVE-2024-38921 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-38921 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-38921 exists.

Sources

Also known as GHSA-g4ph-37mq-hvxw.