GSD-2022-1002203 ax25: fix UAF bug in ax25_send_control()
A use-after-free bug in the Linux kernel AX.25 protocol 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-2022-1002203?
GSD-2022-1002203 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ax25: fix UAF bug in ax25_send_control()
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 v5.4.190 by commit eaa7eb23fa76db45f7da1b6192518705863d0ebe, it was introduced in version v5.4.190 by commit 9e1e088a57c23251f1cfe9601bbd90ade2ea73b9. For more details please see the references link.
Which versions are affected by GSD-2022-1002203?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002203?
No fix has been published for GSD-2022-1002203 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-2022-1002203 being exploited?
There is no known exploitation of GSD-2022-1002203 in the wild and no public exploit code.