GSD-2023-1002205 net: fix UaF in netns ops registration error path
A use-after-free vulnerability in the Linux kernel network namespace registration error path allows local attackers to potentially execute code or escalate privileges.
- 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-2023-1002205?
GSD-2023-1002205 is an use after free vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: fix UaF in netns ops registration error path
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 v5.4.231 by commit ddd49cbbd4c1ceb38032018b589b44208e54f55e, it was introduced in version v5.4.223 by commit 97ad240fd9aa9214497d14af2b91608e20856cac. For more details please see the references link.
Which versions are affected by GSD-2023-1002205?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002205?
No fix has been published for GSD-2023-1002205 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-2023-1002205 being exploited?
There is no known exploitation of GSD-2023-1002205 in the wild and no public exploit code.