GSD-2023-1000440 ext4: fix leaking uninitialized memory in fast-commit journal
Local attackers can read uninitialized memory from the ext4 fast-commit journal, potentially exposing sensitive kernel data.
- 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-2023-1000440?
GSD-2023-1000440 is a 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: fix leaking uninitialized memory in fast-commit journal
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 d9ba03eb03dc2dccb5450de388ea46bdcaaf8348, it was introduced in version v5.10 by commit aa75f4d3daaeb1389b9cce9d6b84401eaf228d4e. For more details please see the references link.
Which versions are affected by GSD-2023-1000440?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000440?
No fix has been published for GSD-2023-1000440 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1000440 being exploited?
There is no known exploitation of GSD-2023-1000440 in the wild and no public exploit code.