GSD-2022-1006629 net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed
A use-after-free vulnerability in the Linux kernel's netfilter subsystem allows local 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-2022-1006629?
GSD-2022-1006629 is an use after free vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed
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 v6.0.7 by commit 4a4df5e78712de39d6f90d6a64b5eb48dca03bd5, it was introduced in version v2.6.33 by commit f875bae065334907796da12523f9df85c89f5712. For more details please see the references link.
Which versions are affected by GSD-2022-1006629?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006629?
No fix has been published for GSD-2022-1006629 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-2022-1006629 being exploited?
There is no known exploitation of GSD-2022-1006629 in the wild and no public exploit code.