GSD-2023-1000925 dm clone: Fix UAF in clone_dtr()
A use-after-free vulnerability in the Linux kernel's dm clone module allows local attackers to potentially execute code or escalate privileges.
- 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-2023-1000925?
GSD-2023-1000925 is an use after free 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
dm clone: Fix UAF in clone_dtr()
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 v5.15.87 by commit 856edd0e92f3fe89606b704c86a93daedddfe6ec, it was introduced in version v5.4 by commit 7431b7835f554f8608b415a02cf3c3f086309e02. For more details please see the references link.
Which versions are affected by GSD-2023-1000925?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000925?
No fix has been published for GSD-2023-1000925 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-2023-1000925 being exploited?
There is no known exploitation of GSD-2023-1000925 in the wild and no public exploit code.