GSD-2021-1000799 bpf, lockdown, audit: Fix buggy SELinux lockdown permission checks

Not scored Published

A bug in Linux kernel SELinux lockdown permission checks allows bypassing security restrictions, requiring kernel upgrade to fix.

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-2021-1000799?

GSD-2021-1000799 is a vulnerability in Kernel, published on 25 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

bpf, lockdown, audit: Fix buggy SELinux lockdown permission checks

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 v5.12.10 by commit acc43fc6cf0d50612193813c5906a1ab9d433e1e, it was introduced in version v5.6 by commit 59438b46471ae6cdfb761afc8c9beaf1e428a331. For more details please see the references link.

Which versions are affected by GSD-2021-1000799?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1000799?

No fix has been published for GSD-2021-1000799 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1000799 being exploited?

There is no known exploitation of GSD-2021-1000799 in the wild and no public exploit code.

Sources

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