GSD-2021-1001059 net/mlx5e: Fix use-after-free of encap entry in neigh update handler
A use-after-free vulnerability in the Linux kernel mlx5e driver 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-2021-1001059?
GSD-2021-1001059 is an use after free 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/mlx5e: Fix use-after-free of encap entry in neigh update handler
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 v5.12.13 by commit b6447b72aca571632e71bb73a797118d5ce46a93, it was introduced in version v5.4 by commit 2a1f1768fa17805ca2e937e2e034a7c3433d3bdc. For more details please see the references link.
Which versions are affected by GSD-2021-1001059?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001059?
No fix has been published for GSD-2021-1001059 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-2021-1001059 being exploited?
There is no known exploitation of GSD-2021-1001059 in the wild and no public exploit code.