GSD-2023-1001994 net/sched: act_mpls: Fix warning during failed attribute validation

Not scored Published

A flaw in the Linux kernel MPLS action allows a local attacker to trigger a warning and potential denial of service via failed attribute validation.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is GSD-2023-1001994?

GSD-2023-1001994 is a denial of service vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

net/sched: act_mpls: Fix warning during failed attribute validation

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 v6.1.7 by commit 8a97b544b98e44f596219ebb290fd2ba2fd5d644, it was introduced in version v5.3 by commit 2a2ea50870baa3fb4de0872c5b60828138654ca7. For more details please see the references link.

Which versions are affected by GSD-2023-1001994?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2023-1001994?

No fix has been published for GSD-2023-1001994 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-2023-1001994 being exploited?

There is no known exploitation of GSD-2023-1001994 in the wild and no public exploit code.

Sources

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