GSD-2022-1006884 ext2: Add sanity checks for group and filesystem size

Not scored Published

Missing sanity checks in the ext2 filesystem code could allow a local attacker to cause a denial of service via a crafted filesystem image.

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-2022-1006884?

GSD-2022-1006884 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ext2: Add sanity checks for group and filesystem size

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 v6.0.3 by commit 321440079763998076b75e0c802524e2218a7d97. For more details please see the references link.

Which versions are affected by GSD-2022-1006884?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1006884?

No fix has been published for GSD-2022-1006884 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-2022-1006884 being exploited?

There is no known exploitation of GSD-2022-1006884 in the wild and no public exploit code.

Sources

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