GSD-2023-1001597 serial: amba-pl011: avoid SBSA UART accessing DMACR register
A flaw in the Linux Kernel serial driver allows accessing an invalid register, potentially causing a system crash or denial of service.
- 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-2023-1001597?
GSD-2023-1001597 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
serial: amba-pl011: avoid SBSA UART accessing DMACR register
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 v4.9.337 by commit 1c5f0d3f480abd8c26761b6b1f486822e77faea3, it was introduced in version v4.2 by commit 0dd1e247fd39aed20fd2baacc62ca44d82534798. For more details please see the references link.
Which versions are affected by GSD-2023-1001597?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001597?
No fix has been published for GSD-2023-1001597 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-2023-1001597 being exploited?
There is no known exploitation of GSD-2023-1001597 in the wild and no public exploit code.