Vulnerability in Kernel: Failure to Register Sensor with Thermal Zone
Summary
GSD-2022-1000815: hwmon: Handle failure to register sensor with thermal zone correctly. Affects Kernel versions >= 1597b374af22266266e1e20612208c4b11359ad4, < 7efe8499cb90651c540753f4269d2d43ede14223. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that acts as a bridge between the hardware and software layers. It provides essential functionalities, such as device drivers, memory management, and process scheduling. The vulnerability in question pertains to the handling of sensor registration with thermal zones in the Kernel's hwmon subsystem. Thermal zones are used to monitor and control the temperature of various hardware components, ensuring they operate within safe limits. However, a failure to correctly register a sensor with a thermal zone can lead to potential security risks.
Vulnerability Detail
The vulnerability arises from a flaw in the handling of sensor registration with thermal zones in the Kernel's hwmon subsystem. When a sensor fails to register correctly, it can result in improper temperature monitoring and control, potentially leading to overheating or other thermal-related issues. Attackers could exploit this vulnerability to manipulate temperature readings, deceive thermal management systems, or cause hardware damage. The vulnerability was introduced in Kernel version v5.8 and is fixed in v5.15.26.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no known workaround for this vulnerability. It is crucial to update the Kernel to the fixed version as soon as possible.
Conclusion
The vulnerability in the Kernel's hwmon subsystem, which involves the failure to register a sensor with a thermal zone correctly, can lead to improper temperature monitoring and control. This can result in overheating, hardware damage, or potential exploitation by attackers. To address this vulnerability, it is crucial to update the Linux Kernel to version v5.15.26 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to improper temperature monitoring and control, potentially resulting in overheating or other thermal-related issues. It may also be exploited by attackers to manipulate temperature readings, deceive thermal management systems, or cause hardware damage.
You can use the Vulert 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 for any open-source vulnerabilities, including this one.
No, the vulnerability was introduced in Kernel version v5.8. If you are using a version prior to v5.8, you are not affected. However, it is still recommended to update to the fixed version for overall security and stability.
No, this vulnerability requires local access to the system. It cannot be exploited remotely over a network.
There is no known instance of this vulnerability being actively exploited at the time of this report. However, it is essential to apply the fix promptly to mitigate any potential risks.
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