Data-races around sysctl_tcp_base_mss in Kernel
Summary
GSD-2022-1004130: tcp: Fix data-races around sysctl_tcp_base_mss. Affects Kernel versions >= 5d424d5a674f782d0659a3b66d951f412901faee, < 9ca18116bc16ec31b9a3ce28ea1350badfa36128. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that manages system resources and provides an interface for communication between hardware and software. It is responsible for handling various tasks, including process management, memory management, and device drivers. The vulnerability in focus relates to the TCP (Transmission Control Protocol) module of the Kernel, which is responsible for establishing and maintaining network connections. The sysctl_tcp_base_mss parameter is used to set the base maximum segment size (MSS) for TCP connections. This vulnerability introduces data-races around sysctl_tcp_base_mss, which can lead to potential security issues.
Vulnerability Detail
The data-races around sysctl_tcp_base_mss vulnerability in the Kernel can result in security vulnerabilities. Data-races occur when multiple threads or processes access shared data concurrently without proper synchronization. In this case, the sysctl_tcp_base_mss parameter is susceptible to data-races, which can lead to inconsistent or incorrect values being read or modified. Attackers may exploit this vulnerability to manipulate the base MSS value, potentially impacting the performance, reliability, and security of TCP connections. 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 Kernel to the recommended version.
Conclusion
The data-races around sysctl_tcp_base_mss vulnerability in the Kernel can have significant implications for the performance, reliability, and security of TCP connections. It is crucial to update the Kernel to the recommended version to ensure the vulnerability is patched and the system is protected. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel is a critical component of the Linux operating system that manages system resources and provides an interface for communication between hardware and software.
sysctl_tcp_base_mss is a parameter in the Kernel's TCP module that sets the base maximum segment size (MSS) for TCP connections.
Data-races occur when multiple threads or processes access shared data concurrently without proper synchronization, leading to potential inconsistencies or incorrect values.
This vulnerability can impact the performance, reliability, and security of TCP connections, potentially allowing attackers to manipulate the base MSS value.
To fix this vulnerability, update the Linux Kernel to version v5.18.15 or later, which includes the necessary patch.
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