Race Condition Vulnerability in configfs
Summary
GSD-2022-1000886: configfs: fix a race in configfs_{,un}register_subsystem(). Affects Kernel versions >= 7063fbf2261194f72ee75afca67b3b38b554b5fa, < b7e2b91fcb5c78c414e33dc8d50642e307ca0c5a. No fix is published. How to fix ↓
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Background
The configfs package is a virtual file system in the Linux Kernel that provides a framework for dynamically creating and managing kernel objects. It allows users to configure various subsystems and components of the kernel at runtime. The package is an integral part of the Linux Kernel and is widely used in Linux-based operating systems.
Vulnerability Detail
The race condition vulnerability in configfs arises from a flaw in the configfs_{,un}register_subsystem() functions. This vulnerability can be exploited by an attacker to cause a race condition, leading to potential memory corruption or other unexpected behavior. The vulnerability was introduced in version v2.6.16 of the Linux Kernel and has been present until version v5.4.182. 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 known workaround for this vulnerability. It is essential to update the Linux Kernel to the fixed version to mitigate the risk of exploitation.
Conclusion
The race condition vulnerability in configfs can be mitigated by updating the Linux Kernel to version v5.4.182 or later. It is crucial to promptly apply the fix to ensure the security and stability of the system. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
Configfs is a virtual file system in the Linux Kernel that allows dynamic configuration of kernel objects.
A race condition vulnerability occurs when multiple threads or processes access shared resources concurrently, leading to unexpected behavior or corruption of data.
Exploiting this vulnerability could result in memory corruption or other unexpected behavior, potentially leading to a system compromise.
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.
For more details about this vulnerability, you can refer to the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000886.json
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