GSD-2023-1000487 ext2: unbugger ext2_empty_dir()
A bug in the ext2 filesystem empty directory check can cause a kernel crash, requiring local access to trigger.
- 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-2023-1000487?
GSD-2023-1000487 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ext2: unbugger ext2_empty_dir()
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 v6.0.18 by commit 84b35f6efccec6c7f5446dfbdcd3cbf896e644ad, it was introduced in version v5.19 by commit 27cfa258951a465e3eae63ee1e715e902cd45578. For more details please see the references link.
Which versions are affected by GSD-2023-1000487?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000487?
No fix has been published for GSD-2023-1000487 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2023-1000487 being exploited?
There is no known exploitation of GSD-2023-1000487 in the wild and no public exploit code.