Vulnerability in Kernel: i2c: i801: Don't generate an interrupt on bus reset
Summary
GSD-2021-1000689: i2c: i801: Don't generate an interrupt on bus reset. Affects Kernel versions >= 636752bcb5177a301d0266270661581de8624828, < 09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functions and services to enable the proper functioning of the system. The i2c subsystem within the Kernel facilitates communication between integrated circuits on a computer's motherboard. The i801 driver specifically handles the Intel 801 SMBus controller. This vulnerability affects the i801 driver and its behavior during a bus reset.
Vulnerability Detail
The i2c: i801 driver in the Kernel generates an interrupt on a bus reset, which can lead to potential security vulnerabilities. An attacker could exploit this behavior to disrupt the normal operation of the system or gain unauthorized access. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in Kernel version v3.6 and is fixed in version v4.9.271 by commit 09c9e79f4c10cfb6b9e0e1b4dd355232e4b5a3b3.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is currently no known workaround for this vulnerability. It is advised to apply the official fix by updating the Kernel to a secure version.
Conclusion
The vulnerability in the Kernel's i2c: i801 driver can potentially lead to security risks, system disruption, or unauthorized access. It is crucial to update the Kernel to version v4.9.271 or later to mitigate this vulnerability. No known workaround is available, and manual patching is not recommended. For more information and assistance, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, it could potentially lead to system disruption or unauthorized access.
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 provide real-time alerts for open-source vulnerabilities.
There is currently no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
It is not recommended to manually patch the vulnerability without updating the Kernel. Updating the Kernel to a secure version is the best approach to ensure comprehensive vulnerability remediation.
You can find more information about this vulnerability in the official Linux Kernel security advisories and the CVE database. Additionally, you can reach out to info@devnack.com for further support on vulnerability remediation.
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