GSD-2022-1005344 netfilter: nf_tables: do not allow CHAIN_ID to refer to another table
A flaw in Linux kernel netfilter allows CHAIN_ID to reference another table, potentially enabling privilege escalation or unauthorized access for local attackers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1005344?
GSD-2022-1005344 is a missing authorization vulnerability in Kernel, published on 16 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
netfilter: nf_tables: do not allow CHAIN_ID to refer to another table
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 v5.19.2 by commit 58e863f64ee3d0879297e5e53b646e4b91e59620, it was introduced in version v5.9 by commit 837830a4b439bfeb86c70b0115c280377c84714b. For more details please see the references link.
Which versions are affected by GSD-2022-1005344?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005344?
No fix has been published for GSD-2022-1005344 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is GSD-2022-1005344 being exploited?
There is no known exploitation of GSD-2022-1005344 in the wild and no public exploit code.