CVE-2024-40930 wifi: cfg80211: validate HE operation element parsing
An attacker can cause a denial of service in the Linux kernel by sending malformed Wi-Fi HE operation elements that bypass length validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-40930?
CVE-2024-40930 is a high-severity denial of service vulnerability in Linux kernel, published on 12 Jul 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:
wifi: cfg80211: validate HE operation element parsing
Validate that the HE operation element has the correct length before parsing it.
Which versions are affected by CVE-2024-40930?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-40930?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-40930 being exploited?
There is no known exploitation of CVE-2024-40930 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-40930, DEBIAN-CVE-2024-40930, GHSA-42f9-rjch-58qh, UBUNTU-CVE-2024-40930.