CVE-2024-26668 netfilter: nft_limit: reject configurations that cause integer overflow
An integer overflow in the Linux kernel netfilter limit module can cause incorrect rate limiting, potentially 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-2024-26668?
CVE-2024-26668 is a medium-severity vulnerability in Linux kernel, published on 2 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:
netfilter: nft_limit: reject configurations that cause integer overflow
Reject bogus configs where internal token counter wraps around. This only occurs with very very large requests, such as 17gbyte/s.
Its better to reject this rather than having incorrect ratelimit.
Weakness: CWE-190
Which versions are affected by CVE-2024-26668?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-26668?
Apply the vendor's patch.
Is CVE-2024-26668 being exploited?
There is no known exploitation of CVE-2024-26668 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-26668, DEBIAN-CVE-2024-26668, GHSA-7wpv-j3wh-7j6j, ROOT-OS-DEBIAN-11-CVE-2024-26668, UBUNTU-CVE-2024-26668.