GSD-2022-1006897 NFSD: Protect against send buffer overflow in NFSv3 READDIR

Not scored Published

A buffer overflow in the Linux Kernel NFSv3 READDIR handler allows remote attackers to cause a denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is GSD-2022-1006897?

GSD-2022-1006897 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

NFSD: Protect against send buffer overflow in NFSv3 READDIR

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 279274e31270c28b86feffe5e166d4088f22317b. For more details please see the references link.

Which versions are affected by GSD-2022-1006897?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1006897?

No fix has been published for GSD-2022-1006897 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-2022-1006897 being exploited?

There is no known exploitation of GSD-2022-1006897 in the wild and no public exploit code.

Sources

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