GSD-2022-1006625 ipv6: ensure sane device mtu in tunnels

Not scored Published

An attacker can cause a denial of service in the Linux kernel by exploiting improper MTU handling in IPv6 tunnels.

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

What is GSD-2022-1006625?

GSD-2022-1006625 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ipv6: ensure sane device mtu in tunnels

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 v6.0.7 by commit ccd94bd4939690e24d13e23814bce7ed853a09f3, it was introduced in version v3.7 by commit c12b395a46646bab69089ce7016ac78177f6001f. For more details please see the references link.

Which versions are affected by GSD-2022-1006625?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1006625?

No fix has been published for GSD-2022-1006625 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-2022-1006625 being exploited?

There is no known exploitation of GSD-2022-1006625 in the wild and no public exploit code.

Sources

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