GSD-2023-1000439 ext4: don't set up encryption key during jbd2 transaction
A flaw in the Linux kernel ext4 filesystem could cause a denial of service during journal transactions, requiring a kernel patch.
- 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-2023-1000439?
GSD-2023-1000439 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
ext4: don't set up encryption key during jbd2 transaction
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 206dd3acfb9bca54a25b228c7c7c2257eedde09b, it was introduced in version v5.10 by commit a80f7fcf18672ae4971a6b713b58c0d389aa99fe. For more details please see the references link.
Which versions are affected by GSD-2023-1000439?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000439?
No fix has been published for GSD-2023-1000439 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-2023-1000439 being exploited?
There is no known exploitation of GSD-2023-1000439 in the wild and no public exploit code.