GSD-2022-1008186 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-2022-1008186?
GSD-2022-1008186 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 v5.4.224 by commit c1f594dddd9ffd747c39f49cc5b67a9b7677d2ab, it was introduced in version v5.4.209 by commit 098e07ef0059296e710a801cdbd74b59016e6624. For more details please see the references link.
Which versions are affected by GSD-2022-1008186?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008186?
No fix has been published for GSD-2022-1008186 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-2022-1008186 being exploited?
There is no known exploitation of GSD-2022-1008186 in the wild and no public exploit code.