GSD-2022-1008314 Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
A use-after-free vulnerability in the Linux Kernel Bluetooth L2CAP subsystem allows attackers to potentially execute code or cause a denial of service.
- 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-2022-1008314?
GSD-2022-1008314 is an use after free vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del()
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 v4.14.299 by commit 17c6164854f8bb80bf76f32b2c2f199c16b53703, it was introduced in version v4.14.291 by commit 5bb395334392891dffae5a0e8f37dbe1d70496c9. For more details please see the references link.
Which versions are affected by GSD-2022-1008314?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008314?
No fix has been published for GSD-2022-1008314 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-2022-1008314 being exploited?
There is no known exploitation of GSD-2022-1008314 in the wild and no public exploit code.