Vulnerability in Kernel package: staging: wfx: fix an error handling in wfx_init_common()
Summary
GSD-2022-1001379: staging: wfx: fix an error handling in wfx_init_common(). Affects Kernel versions < ab0fed1fa744173433cfd1dbaf9239f200ded650. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It provides essential services and interfaces for hardware, software, and user applications. The staging subsystem within the Kernel package is used for developing and testing new drivers before they are fully integrated into the mainline kernel. The wfx driver is part of the staging subsystem and is used for supporting Silicon Labs WF200/WFM200 Wi-Fi chips. This vulnerability specifically affects the wfx_init_common() function within the wfx driver.
Vulnerability Detail
The wfx_init_common() function in the wfx driver of the Kernel package has a flaw in its error handling mechanism. This vulnerability could allow an attacker to exploit the error handling code and potentially cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. The exact impact and attack vectors have not been proven, but the vulnerability has been identified and fixed in Linux Kernel version v5.16.20 by commit ab0fed1fa744173433cfd1dbaf9239f200ded650.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the Kernel package's staging subsystem, specifically the wfx driver's wfx_init_common() function, is vulnerable to an error handling flaw. This vulnerability could potentially lead to a denial-of-service (DoS) condition or arbitrary code execution with kernel privileges. It is crucial to update the Linux Kernel package to version v5.16.20 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a denial-of-service (DoS) condition to arbitrary code execution with kernel privileges. However, the exact impact and attack vectors have not been proven.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it in real-time.
Yes, a patch for this vulnerability is available in Linux Kernel version v5.16.20. It is recommended to update to this version or later to fix the vulnerability.
Updating the Kernel package to the fixed version is the recommended approach to mitigate the risk. However, if updating is not immediately feasible, you can consider implementing other security measures such as network segmentation, access controls, and monitoring to reduce the potential impact.
You can find more information about this vulnerability in the official Linux Kernel Git repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the vulnerability database maintained by the Cloud Security Alliance (https://github.com/cloudsecurityalliance/gsd-database).
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