GSD-2023-1001807 misc: fastrpc: Don't remove map on creater_process and device_release
A use-after-free vulnerability in the Linux kernel's fastrpc driver allows local attackers to potentially escalate privileges or cause a system crash.
- 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-2023-1001807?
GSD-2023-1001807 is an use after free vulnerability in Kernel, published on 31 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
misc: fastrpc: Don't remove map on creater_process and device_release
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 v5.4.230 by commit 4b5c44e924a571d0ad07054de549624fbc04e4d7, it was introduced in version v5.2 by commit b49f6d83e290f17e20f4e5cf31288d3bb4955ea6. For more details please see the references link.
Which versions are affected by GSD-2023-1001807?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001807?
No fix has been published for GSD-2023-1001807 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-2023-1001807 being exploited?
There is no known exploitation of GSD-2023-1001807 in the wild and no public exploit code.