GSD-2023-1000403 netfilter: ipset: Rework long task execution when adding/deleting entries

Not scored Published

A flaw in the Linux kernel ipset subsystem can cause long task execution during entry modifications, potentially leading to denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2023-1000403?

GSD-2023-1000403 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

netfilter: ipset: Rework long task execution when adding/deleting entries

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 v6.0.19 by commit 24a828f5a54bdeca0846526860d72b3766c5fe95, it was introduced in version v5.14 by commit 5f7b51bf09baca8e4f80cbe879536842bafb5f31. For more details please see the references link.

Which versions are affected by GSD-2023-1000403?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1000403?

No fix has been published for GSD-2023-1000403 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-2023-1000403 being exploited?

There is no known exploitation of GSD-2023-1000403 in the wild and no public exploit code.

Sources

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