Vulnerability in Kernel package: sit: do not call ipip6_dev_free() from sit_init_net()
Summary
GSD-2021-1002635: sit: do not call ipip6_dev_free() from sit_init_net(). Affects Kernel versions >= cf124db566e6b036b8bcbe8decbed740bdfac8c6, < 4e1797914d8f223726ff6ae5ece4f97d73f21bab. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental 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 sit (IPv6-in-IPv4) module within the Kernel package.
Vulnerability Detail
The sit module in the Kernel package improperly calls the ipip6_dev_free() function from sit_init_net(), leading to a potential security vulnerability. The impact and attack plausibility of this vulnerability have not been proven yet. However, if exploited, it could result in unauthorized access, information disclosure, or other malicious activities. The vulnerability was introduced in version v4.12 of the Linux Kernel and has been fixed in version v4.14.259.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
In conclusion, the Kernel package is vulnerable to a security issue in the sit module. It is recommended to update the package to version v4.14.259 or later to mitigate the 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, as it has not been proven in real-world scenarios. However, if exploited, it could potentially lead to unauthorized access or information disclosure.
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 analyze it in real-time.
Yes, a patch has been released in version v4.14.259 of the Linux Kernel. It is recommended to update your Kernel package to this version or later.
No known exploits for this vulnerability have been reported at this time.
You can find more information about this vulnerability in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the vulnerability database maintained by the Cloud Security Alliance (https://github.com/cloudsecurityalliance/gsd-database).
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