GSD-2022-1003889 rxrpc: Fix listen() setting the bar too high for the prealloc rings
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-2022-1003889?
GSD-2022-1003889 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 v4.19.247 by commit 4a3a78b7918bdd723d8c7c9786522ca969bffcc4, it was introduced in version v4.9 by commit 00e907127e6f86d0f9b122d9b4347a8aa09a8b61. For more details please see the references link.
Which versions are affected by GSD-2022-1003889?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003889?
No fix has been published for GSD-2022-1003889 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-2022-1003889 being exploited?
There is no known exploitation of GSD-2022-1003889 in the wild and no public exploit code.