GSD-2021-1001016 dm verity: fix require_signatures module_param permissions

Not scored Published

Incorrect permissions on the dm verity require_signatures module parameter allow bypassing signature verification, potentially enabling unsigned code execution.

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-2021-1001016?

GSD-2021-1001016 is a 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

dm verity: fix require_signatures module_param permissions

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 v5.12.11 by commit fb429fad145a987056ac315b2c859197c3daa890. For more details please see the references link.

Which versions are affected by GSD-2021-1001016?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1001016?

No fix has been published for GSD-2021-1001016 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1001016 being exploited?

There is no known exploitation of GSD-2021-1001016 in the wild and no public exploit code.

Sources

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