Data Race Vulnerability in Linux Kernel
Summary
GSD-2022-1004518: tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts. Affects Kernel versions >= 36e31b0af58728071e8023cf8e20c5166b700717, < cc133e4f4bc225079198192623945bb872c08143. No fix is published. How to fix ↓
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Background
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing an interface for applications to interact with the hardware. It is a critical piece of software that is constantly being developed and maintained by a large community of contributors. The vulnerability in question affects the TCP subsystem of the Linux Kernel.
Vulnerability Detail
The vulnerability identified as GSD-2022-1004518 is a data race issue in the TCP subsystem of the Linux Kernel. Specifically, the issue revolves around the sysctl_tcp_thin_linear_timeouts parameter. A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable behavior and potential security vulnerabilities. In this case, the data race can result in incorrect handling of TCP thin linear timeouts, potentially leading to performance degradation or even security breaches. The vulnerability was introduced in version 2.6.34 of the Linux Kernel and has been fixed in version 5.10.134.
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. The recommended approach is to apply the fix by updating the Linux Kernel.
Conclusion
The data race vulnerability in the TCP subsystem of the Linux Kernel can lead to unpredictable behavior and potential security breaches. It is crucial to update the Linux Kernel to version 5.10.134 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable behavior and potential security vulnerabilities.
The impact of this vulnerability can vary depending on the specific use case. It can potentially result in performance degradation or even security breaches if the incorrect handling of TCP thin linear timeouts is exploited.
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 the Vulert Playground will analyze it for open-source vulnerabilities, including this specific data race vulnerability in the Linux Kernel.
Yes, a patch for this vulnerability has been released in version 5.10.134 of the Linux Kernel. It is recommended to update to this version or later to fix the vulnerability.
While there is no specific workaround mentioned for this vulnerability, it is generally recommended to prioritize updating the Linux Kernel to the fixed version as soon as possible. This will ensure that the vulnerability is properly addressed and any potential security risks are mitigated.
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