GSD-2022-1000500 usb: f_fs: Fix use-after-free for epfile
A use-after-free vulnerability in the Linux Kernel USB FunctionFS 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-2022-1000500?
GSD-2022-1000500 is an use after free vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
usb: f_fs: Fix use-after-free for epfile
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 v5.16.10 by commit 3e078b18753669615301d946297bafd69294ad2c, it was introduced in version v4.9 by commit a9e6f83c2df199187a5248f824f31b6787ae23ae. For more details please see the references link.
Which versions are affected by GSD-2022-1000500?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000500?
No fix has been published for GSD-2022-1000500 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-2022-1000500 being exploited?
There is no known exploitation of GSD-2022-1000500 in the wild and no public exploit code.