GSD-2022-1000248 KVM: x86: Forcibly leave nested virt when SMM state is toggled
A flaw in KVM x86 nested virtualization handling during SMM state changes could allow local attackers to escalate privileges or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1000248?
GSD-2022-1000248 is a vulnerability in Kernel, published on 18 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: x86: Forcibly leave nested virt when SMM state is toggled
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 v5.15.19 by commit e302786233e6bc512986d007c96458ccf5ca21c7. For more details please see the references link.
Which versions are affected by GSD-2022-1000248?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000248?
No fix has been published for GSD-2022-1000248 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000248 being exploited?
There is no known exploitation of GSD-2022-1000248 in the wild and no public exploit code.