Data-races in tcp: Fix data-races around sysctl_tcp_slow_start_after_idle
Summary
GSD-2022-1004770: tcp: Fix data-races around sysctl_tcp_slow_start_after_idle. Affects Kernel versions >= 35089bb203f44e33b6bbb6c4de0b0708f9a48921, < 3b26e11b07a09b31247688bec61e2925d4a571b6. No fix is published. How to fix ↓
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Background
The vulnerability affects the Kernel package in the Linux ecosystem. The Kernel is the core component of the operating system that manages system resources and provides an interface for applications to interact with the hardware. The specific vulnerability is related to data-races around sysctl_tcp_slow_start_after_idle.
Vulnerability Detail
The vulnerability in the tcp module of the Kernel package allows for data-races around sysctl_tcp_slow_start_after_idle. Data-races can lead to unexpected behavior and potential security vulnerabilities. The impact and attack plausibility of this vulnerability have not yet been proven. It is important to note that this vulnerability has been fixed in Linux Kernel version v4.19.254 by commit 3b26e11b07a09b31247688bec61e2925d4a571b6. However, it was introduced in version v2.6.18 by commit 35089bb203f44e33b6bbb6c4de0b0708f9a48921.
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
The data-races vulnerability in the tcp module of the Kernel package has been fixed in Linux Kernel version v4.19.254. It is recommended to update the Kernel package to the fixed version to ensure security. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The Kernel package is the core component of the operating system that manages system resources and provides an interface for applications to interact with the hardware.
A data-race is a condition that occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unexpected behavior and potential security vulnerabilities.
sysctl_tcp_slow_start_after_idle is a sysctl parameter in the tcp module of the Kernel package that controls the behavior of TCP slow start after an idle period.
You can check the version of the Kernel package by running the command 'uname -r' in the terminal.
There is no known exploit for this vulnerability at the moment. However, it is still important to update to the fixed version to ensure security.
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