GSD-2021-1001563 mac80211: fix use-after-free in CCMP/GCMP RX
A use-after-free vulnerability in the Linux kernel's mac80211 module allows attackers to potentially execute code or cause a denial of service via wireless network traffic.
- 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-2021-1001563?
GSD-2021-1001563 is an use after free vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mac80211: fix use-after-free in CCMP/GCMP RX
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 v4.19.209 by commit 3d5d629c99c468458022e9b381789de3595bf4dd, it was introduced in version v4.19.193 by commit 0f716b48ed25503e6961f4b5b40ece36f7e4ed26. For more details please see the references link.
Which versions are affected by GSD-2021-1001563?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001563?
No fix has been published for GSD-2021-1001563 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-2021-1001563 being exploited?
There is no known exploitation of GSD-2021-1001563 in the wild and no public exploit code.