CVE-2024-38920 Use after free in n/a

Critical 9.1 Published Updated

Remote attackers can trigger a use-after-free in ROS2 Nav2 via dynamic parameter changes, potentially leading to code execution or 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-2024-38920?

CVE-2024-38920 is a critical use after free vulnerability in n/a, published on 5 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 triggerd via remotely sending a request for change the value of dynamic-parameter`/amcl max_beams` .

Weakness: CWE-416

Which versions are affected by CVE-2024-38920?

How do I fix CVE-2024-38920?

No fix has been published for CVE-2024-38920 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-2024-38920 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-38920 exists.

Sources

Also known as GHSA-4m8f-h33w-f64v.

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