GSD-2022-1000627 phylib: fix potential use-after-free

Not scored Published

A use-after-free vulnerability in the Linux kernel phylib allows local attackers to potentially execute code or escalate privileges.

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-2022-1000627?

GSD-2022-1000627 is an use after free vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

phylib: fix potential use-after-free

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 v5.16.5 by commit cb2fab10fc5e7a3aa1bb0a68a3abdcf3e37852af, it was introduced in version v4.16 by commit bafbdd527d569c8200521f2f7579f65a044271be. For more details please see the references link.

Which versions are affected by GSD-2022-1000627?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1000627?

No fix has been published for GSD-2022-1000627 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is GSD-2022-1000627 being exploited?

There is no known exploitation of GSD-2022-1000627 in the wild and no public exploit code.

Sources

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