GSD-2022-1003452 KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak
A local attacker can read uninitialized kernel memory via KVM SVM SEV ioctl interfaces due to missing zero-initialization.
- 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-2022-1003452?
GSD-2022-1003452 is a vulnerability in Kernel, published on 28 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
KVM: SVM: Use kzalloc for sev ioctl interfaces to prevent kernel data leak
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 v5.15.45 by commit d8fdb4b24097472ff6b3c0559448200d420b1418, it was introduced in version v5.7 by commit eaf78265a4ab33935d3a0f1407ce4a91aac4d4d5. For more details please see the references link.
Which versions are affected by GSD-2022-1003452?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003452?
No fix has been published for GSD-2022-1003452 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1003452 being exploited?
There is no known exploitation of GSD-2022-1003452 in the wild and no public exploit code.