GSD-2021-1000913 kvm: LAPIC: Restore guard to prevent illegal APIC register access
A missing guard in the Linux Kernel LAPIC allows illegal APIC register access, potentially enabling privilege escalation or code execution by a local attacker.
- 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-2021-1000913?
GSD-2021-1000913 is a missing authorization vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
kvm: LAPIC: Restore guard to prevent illegal APIC register access
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 v5.4.128 by commit bf99ea52970caeb4583bdba1192c1f9b53b12c84, it was introduced in version v5.3 by commit 01402cf81051f796dac7c60ca11d6147153ca46a. For more details please see the references link.
Which versions are affected by GSD-2021-1000913?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000913?
No fix has been published for GSD-2021-1000913 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-2021-1000913 being exploited?
There is no known exploitation of GSD-2021-1000913 in the wild and no public exploit code.