CVE-2024-26843 efi: runtime: Fix potential overflow of soft-reserved region size
An integer overflow in the Linux kernel EFI runtime code can lead to memory corruption, potentially allowing local attackers to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-26843?
CVE-2024-26843 is a medium-severity vulnerability in Debian Debian Linux, published on 17 Apr 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: runtime: Fix potential overflow of soft-reserved region size
md_size will have been narrowed if we have >= 4GB worth of pages in a soft-reserved region.
Weakness: CWE-787
Which versions are affected by CVE-2024-26843?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-26843?
Apply the vendor's patch.
Is CVE-2024-26843 being exploited?
There is no known exploitation of CVE-2024-26843 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-26843, DEBIAN-CVE-2024-26843, GHSA-qp87-7fwc-x65r, UBUNTU-CVE-2024-26843.