Vulnerability in Kernel: mptcp: ensure tx skbs always have the MPTCP ext
Summary
UVI-2021-1001754: mptcp: ensure tx skbs always have the MPTCP ext. Affects Kernel versions >= e35820fb56415be6924bf552ec223ed5f347b4be, < f8ff625a8082db8c2b58dcb5229b27928943b94b. No fix is published. How to fix ↓
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Background
The Kernel is a fundamental component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between processes, and enables the execution of various tasks. The MultiPath TCP (MPTCP) is an extension to the TCP protocol that allows for the simultaneous use of multiple network paths. It enhances reliability, performance, and resilience in network connections. However, a vulnerability has been identified in the Kernel's MPTCP implementation.
Vulnerability Detail
The vulnerability in the MPTCP implementation of the Kernel can potentially lead to security issues. Specifically, it fails to ensure that transmission (tx) socket buffers (skbs) always have the MPTCP extension. This oversight may allow attackers to exploit the system by manipulating or injecting malicious data into the network traffic. 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. It is advised to apply the fix by updating the Linux Kernel to the recommended version.
Conclusion
The vulnerability in the Kernel's MPTCP implementation can potentially lead to security issues by allowing attackers to manipulate network traffic. It is crucial to update the Linux Kernel to version v5.14.9 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a core component of the Linux operating system that manages system resources and facilitates communication between hardware and software.
MultiPath TCP (MPTCP) is an extension to the TCP protocol that enables the simultaneous use of multiple network paths, enhancing reliability and performance.
The impact of this vulnerability is not yet proven. However, it may allow attackers to manipulate or inject malicious data into network traffic.
To fix this vulnerability, update the Linux Kernel to version v5.14.9 or later, which includes the necessary fix for the MPTCP implementation.
No specific workaround is mentioned for this vulnerability. It is recommended to update the Kernel to the latest version.
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