GSD-2023-1001034 x86/hyperv: Remove unregister syscore call from Hyper-V cleanup

Not scored Published

A flaw in the Linux Kernel Hyper-V cleanup routine could lead to system instability or denial of service, requiring a kernel patch.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2023-1001034?

GSD-2023-1001034 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

x86/hyperv: Remove unregister syscore call from Hyper-V cleanup

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 v5.15.86 by commit cadb938a5e500461d9529e9dd6e6707dfaaef616. For more details please see the references link.

Which versions are affected by GSD-2023-1001034?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1001034?

No fix has been published for GSD-2023-1001034 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is GSD-2023-1001034 being exploited?

There is no known exploitation of GSD-2023-1001034 in the wild and no public exploit code.

Sources

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