GSD-2023-1001309 media: dvbdev: fix refcnt bug
A reference counting bug in the Linux Kernel DVB subsystem can lead to use-after-free, potentially allowing local attackers to escalate privileges or cause 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-2023-1001309?
GSD-2023-1001309 is an use after free vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
media: dvbdev: fix refcnt bug
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 v5.10.163 by commit a8be7c2787b98cf43b5c308094d2e2b1c8ce19b6, it was introduced in version v5.10.163 by commit 2abd73433872194bccdf1432a0980e4ec5273c2a. For more details please see the references link.
Which versions are affected by GSD-2023-1001309?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001309?
No fix has been published for GSD-2023-1001309 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-2023-1001309 being exploited?
There is no known exploitation of GSD-2023-1001309 in the wild and no public exploit code.