Data Race Vulnerability in Linux Kernel
Summary
GSD-2022-1004396: tcp: Fix a data-race around sysctl_tcp_ecn_fallback. Affects Kernel versions >= 492135557dc090a1abb2cfbe1a412757e3ed68ab, < 8bcf7339f2cf70ea4461df6ea045d1aadfabfa11. 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 essential functionality. It is a critical piece of software that enables the execution of user applications and ensures proper hardware interaction. The vulnerability identified in this report pertains to the TCP module of the Linux Kernel, which handles network communication using the Transmission Control Protocol (TCP).
Vulnerability Detail
The vulnerability in the TCP module of the Linux Kernel involves a data race around the sysctl_tcp_ecn_fallback function. 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 be exploited by an attacker to manipulate the sysctl_tcp_ecn_fallback function and potentially disrupt network communication or gain unauthorized access to sensitive information. 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
No specific workaround has been provided for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the latest version.
Conclusion
In conclusion, the data race vulnerability in the TCP module of the Linux Kernel can potentially lead to security issues and should be addressed by updating the kernel to the latest version. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Linux Kernel is the core component of the Linux operating system, responsible for managing system resources and providing essential functionality.
A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable behavior and potential security vulnerabilities.
This vulnerability can be exploited by an attacker to manipulate the sysctl_tcp_ecn_fallback function and potentially disrupt network communication or gain unauthorized access to sensitive information.
No, the impact and attack plausibility of this vulnerability have not been proven yet.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.56 or later.
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