GSD-2021-1000172 media: dvbdev: Fix memory leak in dvb_media_device_free()
A memory leak in the Linux Kernel DVB subsystem allows local attackers to exhaust system memory, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000172?
GSD-2021-1000172 is a denial of service vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
media: dvbdev: Fix memory leak in dvb_media_device_free()
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 v5.4.118 by commit 9185b3b1c143b8da409c19ac5a785aa18d67a81b, it was introduced in version v4.5 by commit 0230d60e4661d9ced6fb0b9a30f182ebdafbba7a. For more details please see the references link.
Which versions are affected by GSD-2021-1000172?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000172?
No fix has been published for GSD-2021-1000172 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1000172 being exploited?
There is no known exploitation of GSD-2021-1000172 in the wild and no public exploit code.