net/sched: tcindex: search key must be 16 bits
Summary
GSD-2023-1002301: net/sched: tcindex: search key must be 16 bits. Affects Kernel versions >= bd662ba56187b5ef8a62a3511371cd38299a507f, < 513e4b876ec59c4d3b26764101c728a82afc7dfa. No fix is published. How to fix ↓
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Background
The Linux Kernel is an open-source monolithic Unix-like computer operating system kernel. It provides the essential low-level functionality for all other software running on a Linux system. The tcindex module in the kernel is responsible for traffic control indexing. It allows for efficient classification and prioritization of network traffic. However, a vulnerability has been discovered in the tcindex module where the search key must be 16 bits.
Vulnerability Detail
The vulnerability in the tcindex module arises from a flaw in the search key, which must be 16 bits. This limitation can lead to potential security vulnerabilities, although the actual impact and attack plausibility have not yet been proven. Attackers may be able to exploit this vulnerability to manipulate network traffic classification and potentially disrupt network operations. The vulnerability was introduced in Linux Kernel version v6.1.13 by commit bd662ba56187b5ef8a62a3511371cd38299a507f and has been fixed in version v6.1.13 by commit 513e4b876ec59c4d3b26764101c728a82afc7dfa.
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 tcindex module in the Linux Kernel is vulnerable to a flaw where the search key must be 16 bits. This vulnerability can potentially be exploited to manipulate network traffic classification and disrupt network operations. It is recommended to update the Linux Kernel to version v6.1.13 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it could potentially allow attackers to manipulate network traffic classification and disrupt network operations.
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 for any open-source vulnerabilities, including this one.
There is currently no known exploit for this vulnerability. However, it is important to apply the recommended fix to ensure the security of your system.
No specific mitigation method is mentioned for this vulnerability. It is recommended to update the kernel to the fixed version to ensure the vulnerability is resolved.
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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