GSD-2023-1002249 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-2023-1002249?
GSD-2023-1002249 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 v4.19.272 by commit ad0dfe9bcf0d78e699c7efb64c90ed062dc48bea, it was introduced in version v4.19.264 by commit 5a2ea549be94924364f6911227d99be86e8cf34a. For more details please see the references link.
Which versions are affected by GSD-2023-1002249?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002249?
No fix has been published for GSD-2023-1002249 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-2023-1002249 being exploited?
There is no known exploitation of GSD-2023-1002249 in the wild and no public exploit code.