GSD-2022-1003793 NFC: NULL out the dev->rfkill to prevent UAF
A use-after-free vulnerability in the Linux Kernel NFC subsystem allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1003793?
GSD-2022-1003793 is an use after free vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
NFC: NULL out the dev->rfkill to prevent UAF
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.198 by commit fbf9c4c714d3cdeb98b6a18e4d057f931cad1d81, it was introduced in version v5.4.162 by commit 307d2e6cebfca9d92f86c8e2c8e3dd4a8be46ba6. For more details please see the references link.
Which versions are affected by GSD-2022-1003793?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003793?
No fix has been published for GSD-2022-1003793 yet. Limit exposure of the affected software until one is available.
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 GSD-2022-1003793 being exploited?
There is no known exploitation of GSD-2022-1003793 in the wild and no public exploit code.