GSD-2021-1001421 misc/libmasm/module: Fix two use after free in ibmasm_init_one
A use-after-free vulnerability in the ibmasm kernel module allows local attackers with high privileges 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-2021-1001421?
GSD-2021-1001421 is an use after free 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
misc/libmasm/module: Fix two use after free in ibmasm_init_one
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 5b06ca113bf197aab2ab61288f42506e0049fbab. For more details please see the references link.
Which versions are affected by GSD-2021-1001421?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001421?
No fix has been published for GSD-2021-1001421 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-2021-1001421 being exploited?
There is no known exploitation of GSD-2021-1001421 in the wild and no public exploit code.