GSD-2022-1008104 Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
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-2022-1008104?
GSD-2022-1008104 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 caused by l2cap_reassemble_sdu
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 v5.10.154 by commit cb1c012099ef5904cd468bdb8d6fcdfdd9bcb569, it was introduced in version v3.6 by commit d2a7ac5d5d3a0b166ac128883bd088064c029fe5. For more details please see the references link.
Which versions are affected by GSD-2022-1008104?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008104?
No fix has been published for GSD-2022-1008104 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-2022-1008104 being exploited?
There is no known exploitation of GSD-2022-1008104 in the wild and no public exploit code.