CVE-2024-38585 tools/nolibc/stdlib: fix memory error in realloc()
A memory error in the Linux kernel's nolibc realloc function allows copying data from beyond allocated regions, potentially leading to crashes or 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-2024-38585?
CVE-2024-38585 is a high-severity memory corruption vulnerability in Linux kernel, published on 19 Jun 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:
tools/nolibc/stdlib: fix memory error in realloc()
Pass user_p_len to memcpy() instead of heap->len to prevent realloc() from copying an extra sizeof(heap) bytes from beyond the allocated region.
Weakness: CWE-125
Which versions are affected by CVE-2024-38585?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-38585?
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-2024-38585 being exploited?
There is no known exploitation of CVE-2024-38585 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-38585, DEBIAN-CVE-2024-38585, GHSA-242p-3rpg-2x9q, UBUNTU-CVE-2024-38585.