GSD-2022-1008336 nilfs2: fix use-after-free bug of ns_writer on remount
A use-after-free bug in the nilfs2 filesystem allows local attackers with high privileges to potentially execute code or escalate privileges via remount operations.
- 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-2022-1008336?
GSD-2022-1008336 is an use after free vulnerability in Kernel, published on 8 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
nilfs2: fix use-after-free bug of ns_writer on remount
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 v4.9.334 by commit b2fbf10040216ef5ee270773755fc2f5da65b749. For more details please see the references link.
Which versions are affected by GSD-2022-1008336?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1008336?
No fix has been published for GSD-2022-1008336 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-2022-1008336 being exploited?
There is no known exploitation of GSD-2022-1008336 in the wild and no public exploit code.