GSD-2021-1000934 net: bridge: fix vlan tunnel dst null pointer dereference
A null pointer dereference in the Linux kernel bridge VLAN tunnel code can cause a system crash, requiring specific VLAN tunnel configurations.
- 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-2021-1000934?
GSD-2021-1000934 is a vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: bridge: fix vlan tunnel dst null pointer dereference
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 v5.4.128 by commit a2241e62f6b4a774d8a92048fdf59c45f6c2fe5c, it was introduced in version v4.11 by commit 11538d039ac6efcf4f1a6c536e1b87cd3668a9fd. For more details please see the references link.
Which versions are affected by GSD-2021-1000934?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000934?
No fix has been published for GSD-2021-1000934 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000934 being exploited?
There is no known exploitation of GSD-2021-1000934 in the wild and no public exploit code.