CVE-2024-27052 wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work
A use-after-free vulnerability in the Linux kernel rtl8xxxu WiFi driver allows attackers to cause denial of service or execute code when the driver is stopped.
- 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-2024-27052?
CVE-2024-27052 is a high-severity use after free vulnerability in Debian Debian Linux, published on 1 May 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: rtl8xxxu: add cancel_work_sync() for c2hcmd_work
The workqueue might still be running, when the driver is stopped. To avoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop().
Weakness: CWE-416
Which versions are affected by CVE-2024-27052?
It affects 2 products.
Products include Debian Debian Linux, Linux kernel.
How do I fix CVE-2024-27052?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-27052 being exploited?
There is no known exploitation of CVE-2024-27052 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BELL-CVE-2024-27052, DEBIAN-CVE-2024-27052, GHSA-29w5-279f-vr72, UBUNTU-CVE-2024-27052.