CVE-2024-42292 kobject_uevent: Fix OOB access within zap_modalias_env()
A local attacker can trigger an out-of-bounds memory access in the Linux kernel, potentially causing a system crash or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-42292?
CVE-2024-42292 is a high-severity memory corruption vulnerability in Linux kernel, published on 17 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
kobject_uevent: Fix OOB access within zap_modalias_env()
zap_modalias_env() wrongly calculates size of memory block to move, so will cause OOB memory access issue if variable MODALIAS is not the last one within its @env parameter, fixed by correcting size to memmove.
Weakness: CWE-125
Which versions are affected by CVE-2024-42292?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42292?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-42292 being exploited?
There is no known exploitation of CVE-2024-42292 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-42292, DEBIAN-CVE-2024-42292, GHSA-8hjv-w23c-j35h, UBUNTU-CVE-2024-42292.