GSD-2022-1000935 vhost/vsock: don't check owner in vhost_vsock_stop() while releasing
A missing authorization check in the Linux kernel vhost/vsock module allows local attackers to bypass ownership validation, potentially leading to privilege escalation or 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-2022-1000935?
GSD-2022-1000935 is a missing authorization vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
vhost/vsock: don't check owner in vhost_vsock_stop() while 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 v4.14.269 by commit 6ac6ca7907d7e6057a0aa4e9af48cbd2a8b2afaa, it was introduced in version v4.8 by commit 433fc58e6bf2c8bd97e57153ed28e64fd78207b8. For more details please see the references link.
Which versions are affected by GSD-2022-1000935?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000935?
No fix has been published for GSD-2022-1000935 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is GSD-2022-1000935 being exploited?
There is no known exploitation of GSD-2022-1000935 in the wild and no public exploit code.