GSD-2023-1001821 drm/virtio: Fix GEM handle creation UAF
A use-after-free vulnerability in the Linux kernel's virtio DRM driver allows local attackers to potentially execute code or escalate privileges.
- 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-2023-1001821?
GSD-2023-1001821 is an use after free vulnerability in Kernel, published on 31 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
drm/virtio: Fix GEM handle creation UAF
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 v5.4.229 by commit d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73, it was introduced in version v4.4 by commit 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257. For more details please see the references link.
Which versions are affected by GSD-2023-1001821?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001821?
No fix has been published for GSD-2023-1001821 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-2023-1001821 being exploited?
There is no known exploitation of GSD-2023-1001821 in the wild and no public exploit code.