CVE-2024-45014 s390/boot: Avoid possible physmem_info segment corruption
A memory corruption flaw in the Linux kernel s390 boot process allows attackers to potentially execute code or escalate privileges via improper memory allocation.
- 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-2024-45014?
CVE-2024-45014 is a medium-severity memory corruption vulnerability in Linux kernel, published on 11 Sep 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:
s390/boot: Avoid possible physmem_info segment corruption
When physical memory for the kernel image is allocated it does not consider extra memory required for offsetting the image start to match it with the lower 20 bits of KASLR virtual base address. That might lead to kernel access beyond its memory range.
Weakness: CWE-770
Which versions are affected by CVE-2024-45014?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-45014?
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-2024-45014 being exploited?
There is no known exploitation of CVE-2024-45014 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-45014, DEBIAN-CVE-2024-45014, GHSA-8v66-q974-wq26, UBUNTU-CVE-2024-45014.