Vulnerability in Kernel Package: sit: do not call ipip6_dev_free() from sit_init_net()
Summary
GSD-2021-1002705: sit: do not call ipip6_dev_free() from sit_init_net(). Affects Kernel versions >= cf124db566e6b036b8bcbe8decbed740bdfac8c6, < 6f46c59e60b64620d5d386c8ee2eaa11ebe3b595. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for communication between hardware and software. The sit module in the Kernel package is responsible for handling IPv6-in-IPv4 tunneling. This vulnerability specifically affects the sit_init_net() function, which erroneously calls the ipip6_dev_free() function. This vulnerability was introduced in version v4.12 of the Kernel package and has been fixed in version v5.10.88.
Vulnerability Detail
The vulnerability arises from the incorrect invocation of the ipip6_dev_free() function within the sit_init_net() function. This can lead to memory corruption or other undefined behavior. The impact and attack plausibility of this vulnerability have not been proven yet. However, it is crucial to address this issue to ensure the stability and security of the Kernel package.
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.
Conclusion
In conclusion, the Kernel package is vulnerable to a memory corruption issue caused by the incorrect invocation of the ipip6_dev_free() function within the sit_init_net() function. It is crucial to update the Kernel package to version v5.10.88 or later to address this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown. However, it has the potential to cause memory corruption or other undefined behavior within the Kernel package.
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 to the playground, and it will provide real-time monitoring and alerts for open-source vulnerabilities.
As of now, there is no known exploit for this vulnerability. However, it is essential to apply the recommended fix to mitigate any potential risks.
While it is technically possible to manually patch the Kernel package, it is highly recommended to update to the latest version provided by the official Linux Kernel repository. This ensures that you receive the necessary fixes and updates from the maintainers.
This vulnerability was discovered by an automated process and reported in the Open Source Vulnerability format. The details and fix information were provided by the Cloud Security Alliance's GSD database.
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