CVE-2024-35800 efi: fix panic in kdump kernel
A null pointer dereference in the Linux kernel EFI subsystem causes a panic during kdump kernel boot, leading to denial of service.
- 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-2024-35800?
CVE-2024-35800 is a medium-severity vulnerability in Linux kernel, published on 17 May 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:
efi: fix panic in kdump kernel
Check if get_next_variable() is actually valid pointer before calling it. In kdump kernel this method is set to NULL that causes panic during the kexec-ed kernel boot.
Tested with QEMU and OVMF firmware.
Weakness: CWE-476
Which versions are affected by CVE-2024-35800?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-35800?
Apply the vendor's patch.
Is CVE-2024-35800 being exploited?
There is no known exploitation of CVE-2024-35800 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-35800, DEBIAN-CVE-2024-35800, GHSA-hchj-593h-jx3r, UBUNTU-CVE-2024-35800.