GSD-2022-1003771 Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
A use-after-free vulnerability in the Linux Kernel Bluetooth subsystem allows attackers to cause denial of service or potentially execute code.
- 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-2022-1003771?
GSD-2022-1003771 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
Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
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 6f55fac0af3531cf60d11369454c41f5fc81ab3f, it was introduced in version v5.4.146 by commit 5ccb04c6e1fb7b97fa2e1785b67c3a1cb3527ef7. For more details please see the references link.
Which versions are affected by GSD-2022-1003771?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003771?
No fix has been published for GSD-2022-1003771 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-2022-1003771 being exploited?
There is no known exploitation of GSD-2022-1003771 in the wild and no public exploit code.