Vulnerability in Kernel package: llc: only change llc->dev when bind() succeeds
Summary
GSD-2022-1002283: llc: only change llc->dev when bind() succeeds. Affects Kernel versions >= 572f9a0d3f3feb8bd3422e88ad71882bc034b3ff, < 993c23880bcecf5e74090c9288ea680b5eb29005. 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 such as process management, memory management, and device drivers. The vulnerability in question affects the llc module within the Kernel package.
Vulnerability Detail
The llc module in the Kernel package has a vulnerability that allows the 'llc->dev' variable to be changed even when the 'bind()' function fails. This can lead to unexpected behavior and potential security issues. The vulnerability was introduced in version v5.4.188 of the Linux Kernel and has been fixed in version v5.4.188 by commit 993c23880bcecf5e74090c9288ea680b5eb29005. The impact and attack plausibility of this vulnerability have not been proven yet.
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 llc module in the Kernel package has a vulnerability that allows the 'llc->dev' variable to be changed even when the 'bind()' function fails. It is recommended to update the Linux Kernel package to version v5.4.188 or later to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality.
The llc module is a part of the Kernel package and is responsible for managing the Logical Link Control (LLC) layer in networking.
The impact of this vulnerability is currently unknown, as the actual attack plausibility and consequences have not been proven.
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 it will provide real-time monitoring and alerts for open-source vulnerabilities.
You can find more information about this vulnerability in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002283.json).
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