GSD-2021-1001423 smackfs: restrict bytes count in smk_set_cipso()
A missing bounds check in the Linux kernel's SMACK filesystem allows local attackers to trigger an integer overflow, potentially causing a denial of service.
- 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-2021-1001423?
GSD-2021-1001423 is a vulnerability in Kernel, published on 3 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
smackfs: restrict bytes count in smk_set_cipso()
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 v4.14.240 by commit 5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2. For more details please see the references link.
Which versions are affected by GSD-2021-1001423?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001423?
No fix has been published for GSD-2021-1001423 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001423 being exploited?
There is no known exploitation of GSD-2021-1001423 in the wild and no public exploit code.