GSD-2022-1007172 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-2022-1007172?
GSD-2022-1007172 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 v5.10.153 by commit c3edc6e808209aa705185f732e682a370981ced1, 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-2022-1007172?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007172?
No fix has been published for GSD-2022-1007172 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-2022-1007172 being exploited?
There is no known exploitation of GSD-2022-1007172 in the wild and no public exploit code.