Data Race Vulnerability in Linux Kernel
Summary
GSD-2022-1004127: tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor. Affects Kernel versions >= c04b79b6cfd714144f6a2cf359603d82ee631e62, < e2ecbf3f0aa88277d43908c53b99399d55729ff9. 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 widely used in various devices, including servers, desktops, and embedded systems. The vulnerability identified in this report affects the TCP module of the Linux Kernel.
Vulnerability Detail
The vulnerability in the TCP module of the Linux Kernel is related to a data race around the 'sysctl_tcp_mtu_probe_floor' function. A data race occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unexpected behavior and potential security vulnerabilities. In this case, the data race can be exploited by an attacker to manipulate the 'sysctl_tcp_mtu_probe_floor' value, potentially causing denial-of-service or other security issues.
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
In conclusion, the data race vulnerability in the TCP module of the Linux Kernel can be mitigated by updating to the latest version of the Linux Kernel. It is recommended to apply the necessary patches and keep the system up to date to ensure the security and stability of the system. For further support on vulnerability remediation, you can 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 unexpected behavior and potential security vulnerabilities.
The impact of this vulnerability can vary depending on the specific usage scenario. It could potentially be exploited by an attacker to manipulate the 'sysctl_tcp_mtu_probe_floor' value, leading to denial-of-service or other security issues.
You can use the Vulert Playground at 'https://vulert.com/scanner' to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and the Vulert Playground will provide real-time alerts for open-source vulnerabilities.
Yes, a patch for this vulnerability is available in the Linux Kernel version v5.18.15 or later. Users are advised to update their Linux Kernel to the latest version to mitigate the risk.
For more detailed information about this vulnerability, you can refer to the source JSON file at 'https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004127.json'.
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