GSD-2021-1000806 wireguard: allowedips: free empty intermediate nodes when removing single node
A memory corruption issue in the WireGuard allowedips module can lead to denial of service when removing single nodes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000806?
GSD-2021-1000806 is a memory corruption vulnerability in Kernel, published on 25 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
wireguard: allowedips: free empty intermediate nodes when removing single node
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 v5.12.10 by commit 5ceb59f40c094e6de1265c1d0e4bd560f692e272, it was introduced in version v5.6 by commit e7096c131e5161fa3b8e52a650d7719d2857adfd. For more details please see the references link.
Which versions are affected by GSD-2021-1000806?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000806?
No fix has been published for GSD-2021-1000806 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1000806 being exploited?
There is no known exploitation of GSD-2021-1000806 in the wild and no public exploit code.