Data Race Vulnerability in tcp Package
Summary
GSD-2022-1004177: tcp: Fix a data-race around sysctl_tcp_ecn_fallback. Affects Kernel versions >= 492135557dc090a1abb2cfbe1a412757e3ed68ab, < 1ec3d6c2626ee6e1b36b7bd006873a271406ba61. No fix is published. How to fix ↓
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Background
The tcp package is a crucial component of the Linux Kernel ecosystem. It provides the necessary functionality for TCP/IP networking, allowing communication between devices over the internet. The package handles the transmission and reception of data packets, ensuring reliable and efficient data transfer. However, a data race vulnerability has been identified in the tcp package, which can lead to potential security risks.
Vulnerability Detail
The data race vulnerability in the tcp package revolves around the sysctl_tcp_ecn_fallback function. This vulnerability allows for a race condition to occur, where multiple threads or processes access and modify shared data simultaneously. As a result, inconsistent or unexpected behavior may arise, potentially leading to security breaches or system instability. The vulnerability was introduced in version v4.2 of the Linux Kernel and has been fixed in version v5.18.13.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As this vulnerability has been fixed in the latest version of the Linux Kernel, there is no specific workaround available. It is crucial to update to the patched version to ensure the security and stability of the system.
Conclusion
The data race vulnerability in the tcp package can pose significant security risks and system instability. It is essential to update the Linux Kernel to version v5.18.13 or later to address this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
A data race vulnerability occurs when multiple threads or processes access and modify shared data concurrently, leading to unexpected or inconsistent behavior.
sysctl_tcp_ecn_fallback is a function in the tcp package that handles the fallback behavior for Explicit Congestion Notification (ECN) in TCP/IP networking.
The data race vulnerability in the tcp package can result in security breaches, system instability, or unexpected behavior in TCP/IP networking.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time alerts for open-source vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is crucial to update to the patched version to mitigate any potential risks.
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