Vulnerability in Kernel (Linux) Package: hwmon: (w83792d)
Summary
GSD-2021-1001736: hwmon: (w83792d) Fix NULL pointer dereference by removing unnecessary structure field. Affects Kernel versions < 24af1fe376e22c42238a4a604d31e46c486876c3. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system that provides the core functionality and interfaces for various hardware devices. It includes drivers and modules for managing hardware monitoring (hwmon) functionalities. One of the modules, w83792d, is responsible for monitoring the hardware sensors on certain motherboards. However, a vulnerability has been discovered in this module that could lead to a NULL pointer dereference, resulting in a system crash or potential exploitation by an attacker.
Vulnerability Detail
The vulnerability in the hwmon module (w83792d) arises from an unnecessary structure field that can cause a NULL pointer dereference. This could be triggered by an attacker or occur unintentionally, leading to a system crash or potential security exploit. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.14.10 by commit 24af1fe376e22c42238a4a604d31e46c486876c3.
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 v5.14.10 or later. This can be done by obtaining the updated kernel source code from the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and compiling it for the target system. Alternatively, users can wait for their Linux distribution to provide an updated package that includes the fix.
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Workaround
As this vulnerability has been fixed in the Linux Kernel, there is no specific workaround available. It is essential to update the Kernel to the patched version to mitigate the risk.
Conclusion
In conclusion, the Kernel package's hwmon module (w83792d) has been found to have a vulnerability that could lead to a NULL pointer dereference. This vulnerability has been fixed in the Linux Kernel version v5.14.10. It is crucial to update the Kernel to the patched version to mitigate the risk. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The vulnerability can lead to a NULL pointer dereference, resulting in a system crash or potential security exploit.
You can use Vulert's playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities.
No, there is no specific workaround available. It is recommended to update the Linux Kernel to the patched version.
The fix for this vulnerability is available in the Linux Kernel version v5.14.10. You can obtain the updated kernel source code from the official Linux Kernel repository.
The vulnerability was discovered by an automated ID intended to aid in the discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.
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