GSD-2021-1001050 kvm: LAPIC: Restore guard to prevent illegal APIC register access
A missing guard in the Linux Kernel LAPIC implementation allows illegal APIC register access, potentially leading to privilege escalation or 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-2021-1001050?
GSD-2021-1001050 is a memory corruption 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 v5.12.13 by commit a2aff09807fbe4018c269d3773a629949058b210, it was introduced in version v5.3 by commit 01402cf81051f796dac7c60ca11d6147153ca46a. For more details please see the references link.
Which versions are affected by GSD-2021-1001050?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001050?
No fix has been published for GSD-2021-1001050 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2021-1001050 being exploited?
There is no known exploitation of GSD-2021-1001050 in the wild and no public exploit code.