Vulnerability in Kernel: x86/delay
Summary
GSD-2022-1003801: x86/delay: Fix the wrong asm constraint in delay_loop(). Affects Kernel versions >= e01b70ef3eb3080fecc35e15f68cd274c0a48163, < ea8b2ecc920d3920fd17121b5c3683dd4ef1c7c3. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It acts as an intermediary between software applications and the computer's hardware, managing resources and facilitating communication. The x86/delay module within the Kernel is responsible for implementing delay loops, which are used for timing purposes in various parts of the system. However, a vulnerability has been discovered in the implementation of delay_loop() function, which could lead to potential security risks.
Vulnerability Detail
The vulnerability in x86/delay arises from a wrong asm constraint in the delay_loop() function. This issue was introduced in version v2.6.27 of the Linux Kernel and has been present until version v5.4.198. The incorrect asm constraint can result in unexpected behavior and potentially be exploited by attackers to gain unauthorized access, execute arbitrary code, or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet, but it is crucial to address it to ensure the security and stability of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been provided for this vulnerability. It is advised to follow the recommended fix by updating the Linux Kernel to the latest version.
Conclusion
In conclusion, a vulnerability has been identified in the x86/delay module of the Linux Kernel, which could potentially lead to security risks. It is crucial to update the Kernel to version v5.4.198 or later to mitigate this vulnerability. No specific workaround has been provided, and it is recommended to prioritize the update to ensure the security and stability of the system. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it could potentially allow attackers to gain unauthorized access, execute arbitrary code, or cause a denial-of-service condition.
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 in real-time to identify any open-source vulnerabilities, including this one.
At the time of this report, there is no known exploit for this vulnerability. However, it is essential to address it promptly by updating the Linux Kernel to the recommended version.
Unfortunately, no specific mitigations have been provided for this vulnerability. It is highly recommended to prioritize updating the Linux Kernel to the latest version as soon as possible.
You can find more information about this vulnerability, including its technical details and the fix commit, in the Open Source Vulnerability Database (OSVDB) entry: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003801.json
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