GSD-2021-1002748 mptcp: remove tcp ulp setsockopt support

Not scored Published

Removal of TCP ULP setsockopt support in the Linux kernel MPTCP subsystem to address potential security issues.

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-2021-1002748?

GSD-2021-1002748 is a vulnerability in Kernel, published on 27 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

mptcp: remove tcp ulp setsockopt support

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 v5.15.11 by commit 3de0c86d42f841d1d64f316cd949e65c566f0734, it was introduced in version v5.13 by commit d9e4c129181004ec94b315b0c9db5eeb09da75e6. For more details please see the references link.

Which versions are affected by GSD-2021-1002748?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2021-1002748?

No fix has been published for GSD-2021-1002748 yet. Limit exposure of the affected software until one is available.

Is GSD-2021-1002748 being exploited?

There is no known exploitation of GSD-2021-1002748 in the wild and no public exploit code.

Sources

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