GSD-2023-1000894 media: dvb-core: Fix UAF due to refcount races at releasing
A use-after-free vulnerability in the Linux kernel's dvb-core subsystem allows local attackers to potentially execute code or escalate privileges due to refcount races.
- 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-2023-1000894?
GSD-2023-1000894 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: dvb-core: Fix UAF due to refcount races at releasing
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 v5.15.87 by commit 8b45a3b19a2e909e830d09a90a7e1ec8601927d9. For more details please see the references link.
Which versions are affected by GSD-2023-1000894?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000894?
No fix has been published for GSD-2023-1000894 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-2023-1000894 being exploited?
There is no known exploitation of GSD-2023-1000894 in the wild and no public exploit code.