GSD-2023-1001972 misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
A use-after-free and race condition in the Linux kernel fastrpc driver allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1001972?
GSD-2023-1001972 is an use after free vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
misc: fastrpc: Fix use-after-free and race in fastrpc_map_find
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 v6.1.8 by commit a50c5c25b6e7d2824698c0e6385f882a18f4a498, it was introduced in version v5.18 by commit 8f6c1d8c4f0cc316b0456788fff8373554d1d99d. For more details please see the references link.
Which versions are affected by GSD-2023-1001972?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001972?
No fix has been published for GSD-2023-1001972 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-2023-1001972 being exploited?
There is no known exploitation of GSD-2023-1001972 in the wild and no public exploit code.