CVE-2024-41072 wifi: cfg80211: wext: add extra SIOCSIWSCAN data check
A missing bounds check in the Linux kernel Wi-Fi driver allows local attackers to cause a denial of service by passing invalid channel counts.
- 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-2024-41072?
CVE-2024-41072 is a medium-severity denial of service vulnerability in Linux kernel, published on 29 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: wext: add extra SIOCSIWSCAN data check
In 'cfg80211_wext_siwscan()', add extra check whether number of channels passed via 'ioctl(sock, SIOCSIWSCAN, ...)' doesn't exceed IW_MAX_FREQUENCIES and reject invalid request with -EINVAL otherwise.
Which versions are affected by CVE-2024-41072?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-41072?
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-2024-41072 being exploited?
There is no known exploitation of CVE-2024-41072 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-41072, DEBIAN-CVE-2024-41072, GHSA-3g2p-rjfc-78cj, UBUNTU-CVE-2024-41072.