Data-races in sysctl_tcp_l3mdev_accept in Linux Kernel
Summary
GSD-2022-1004354: tcp: Fix data-races around sysctl_tcp_l3mdev_accept. Affects Kernel versions >= 6dd9a14e92e54895e143f10fef4d0b9abe109aa9, < 9ba9cd43b5776c27d25e5a32dde9e80bdeb1c6a1. 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 a critical piece of software that enables the functioning of various devices and services on Linux-based systems. The vulnerability in question affects the TCP implementation in the Linux Kernel.
Vulnerability Detail
The vulnerability arises from data-races around sysctl_tcp_l3mdev_accept in the TCP module of the Linux Kernel. Data-races occur 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-races can be exploited to cause denial-of-service (DoS) attacks or potentially gain unauthorized access to sensitive information. The vulnerability was introduced in version v4.5 of the Linux Kernel and has been fixed in version v5.15.58.
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. However, users can mitigate the risk by ensuring they have the latest version of the Linux Kernel installed and regularly applying security updates.
Conclusion
The data-races in sysctl_tcp_l3mdev_accept vulnerability in the Linux Kernel can have serious security implications, including the potential for DoS attacks and unauthorized access to sensitive information. It is crucial to update the Linux Kernel to version v5.15.58 or later to mitigate this vulnerability. For further support on 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 an interface for applications to interact with the hardware.
A data-race occurs when multiple threads or processes access shared data concurrently without proper synchronization, leading to unpredictable behavior and potential security vulnerabilities.
The vulnerability can be exploited to cause denial-of-service (DoS) attacks or potentially gain unauthorized access to sensitive information.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.58 or later.
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring they have the latest version of the Linux Kernel installed and regularly applying security updates.
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