GSD-2021-1000015 netfilter: nftables: clone set element expression template
A memory corruption flaw in the Linux kernel nftables subsystem allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000015?
GSD-2021-1000015 is a memory corruption vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
netfilter: nftables: clone set element expression template
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 v5.11.16 by commit 47d8de3c226574a3ddb8b87d0c152028d1bafef4, it was introduced in version v5.7 by commit 4094445229760d0d31a4190dfe88fe815c9fc34e. For more details please see the references link.
Which versions are affected by GSD-2021-1000015?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000015?
No fix has been published for GSD-2021-1000015 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-2021-1000015 being exploited?
There is no known exploitation of GSD-2021-1000015 in the wild and no public exploit code.