Potential NULL dereference in aspeed_vuart_probe in Kernel
Summary
GSD-2022-1002651: serial: 8250_aspeed_vuart: Fix potential NULL dereference in aspeed_vuart_probe. Affects Kernel versions >= 54da3e381c2b55289b220601f403f17df7b20597, < d5f1275f101e0e8a172d300d897f5a12e87e3485. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel is a crucial component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities and services to enable the proper functioning of the system. One of the components in the Kernel is the 8250_aspeed_vuart module, which handles serial communication. This module is responsible for managing virtual UART devices on ASPEED BMCs (Baseboard Management Controllers).
Vulnerability Detail
The vulnerability identified in the 8250_aspeed_vuart module is a potential NULL dereference in the aspeed_vuart_probe function. This vulnerability can be exploited by an attacker to cause a NULL pointer dereference, leading to a system crash or potential privilege escalation. The vulnerability was introduced in version v5.14 of the Linux Kernel and was fixed in version v5.18.4. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.18.4 or later. This update includes the commit d5f1275f101e0e8a172d300d897f5a12e87e3485, which addresses the NULL dereference issue in the aspeed_vuart_probe function.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The potential NULL dereference vulnerability in the aspeed_vuart_probe function of the 8250_aspeed_vuart module in the Linux Kernel has been identified. It is recommended to update the Kernel to version v5.18.4 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The impact of this vulnerability can range from a system crash to potential privilege escalation, depending on how it is exploited.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will provide real-time alerts for open-source vulnerabilities.
As of now, there are no known exploits for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate any potential risks.
The vulnerability specifically affects the 8250_aspeed_vuart module in the Linux Kernel. However, it is always advisable to keep all software components up to date to ensure overall system security.
You can find more information about this vulnerability in the GSD-2022-1002651 entry of the GSD database maintained by the Cloud Security Alliance. The source link is available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002651.json.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Follow Vulert in Google
Get more Vulert vulnerability and dependency-security updates in Google Search and AI results.