GSD-2021-1002383 ALSA: pcm: oss: Limit the period size to 16MB
A local attacker can trigger an integer overflow in the ALSA PCM OSS module by specifying a large period size, 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-2021-1002383?
GSD-2021-1002383 is a vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ALSA: pcm: oss: Limit the period size to 16MB
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 v4.9.293 by commit b02a41eebcc36d4f07196780f2e165ca2c499257. For more details please see the references link.
Which versions are affected by GSD-2021-1002383?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002383?
No fix has been published for GSD-2021-1002383 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1002383 being exploited?
There is no known exploitation of GSD-2021-1002383 in the wild and no public exploit code.