GSD-2023-1000920 powerpc/rtas: avoid device tree lookups in rtas_os_term()
A flaw in the Linux kernel's RTAS OS termination routine could lead to a denial of service via device tree lookups.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1000920?
GSD-2023-1000920 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
powerpc/rtas: avoid device tree lookups in rtas_os_term()
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 v5.15.87 by commit d8939315b7342860df143afe0adda6212cdd3193. For more details please see the references link.
Which versions are affected by GSD-2023-1000920?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000920?
No fix has been published for GSD-2023-1000920 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-2023-1000920 being exploited?
There is no known exploitation of GSD-2023-1000920 in the wild and no public exploit code.