GSD-2022-1003588 rxrpc: Fix listen() setting the bar too high for the prealloc rings

Not scored Published

A flaw in the Linux Kernel rxrpc module allows remote attackers to cause a denial of service by exploiting prealloc ring settings in listen().

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-2022-1003588?

GSD-2022-1003588 is a denial of service vulnerability in Kernel, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

rxrpc: Fix listen() setting the bar too high for the prealloc rings

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 v5.10.121 by commit 5b4826657d36c218e9f08e8d3223b0edce3de88f, it was introduced in version v4.9 by commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61. For more details please see the references link.

Which versions are affected by GSD-2022-1003588?

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

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1003588?

No fix has been published for GSD-2022-1003588 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-2022-1003588 being exploited?

There is no known exploitation of GSD-2022-1003588 in the wild and no public exploit code.

Sources

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