GSD-2022-1002379 mac80211: fix potential double free on mesh join

Not scored Published

A double free vulnerability in the Linux kernel mac80211 mesh join path could allow attackers to cause denial of service or potentially execute code.

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-2022-1002379?

GSD-2022-1002379 is an use after free vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

mac80211: fix potential double free on mesh join

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 v4.19.237 by commit 273ebddc5fda2967492cb0b6cdd7d81cfb821b76, it was introduced in version v4.19.137 by commit 37bccfa89559a70c044b5ccde3c916a91388e14a. For more details please see the references link.

Which versions are affected by GSD-2022-1002379?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1002379?

No fix has been published for GSD-2022-1002379 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-2022-1002379 being exploited?

There is no known exploitation of GSD-2022-1002379 in the wild and no public exploit code.

Sources

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