CVE-2024-53146 NFSD: Prevent a potential integer overflow
An integer overflow in the Linux kernel NFSD component can lead to a denial of service when processing crafted NFSv4 compound responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-53146?
CVE-2024-53146 is a critical vulnerability in Linux kernel, published on 24 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Prevent a potential integer overflow
If the tag length is >= U32_MAX - 3 then the "length + 4" addition can result in an integer overflow. Address this by splitting the decoding into several steps so that decode_cb_compound4res() does not have to perform arithmetic on the unsafe length value.
Weakness: CWE-190
Which versions are affected by CVE-2024-53146?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-53146?
Apply the vendor's patch.
Is CVE-2024-53146 being exploited?
There is no known exploitation of CVE-2024-53146 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-54945, AZL-55008, BELL-CVE-2024-53146, DEBIAN-CVE-2024-53146, GHSA-rw8v-g4fm-gw3v, UBUNTU-CVE-2024-53146.