Permission Check Bug in net/nfc/rawsock.c
Summary
GSD-2021-1000937: net/nfc/rawsock.c: fix a permission check bug. Affects Kernel versions < 1e5cab50208c8fb7351b798cb1d569debfeb994a. No fix is published. How to fix ↓
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Background
The Linux Kernel is a widely used open-source operating system that serves as the foundation for various Linux distributions. It provides essential functionality for the system, including device drivers, process management, memory management, and networking. The net/nfc/rawsock.c file in the Kernel is responsible for handling raw socket operations for Near Field Communication (NFC) devices. NFC allows for short-range communication between devices, commonly used for contactless payments and data transfer.
This vulnerability in the net/nfc/rawsock.c file allows for a permission check bypass. It could potentially enable an attacker to perform unauthorized operations or access sensitive information through NFC raw sockets. The impact and attack plausibility of this vulnerability have not been proven yet.
Vulnerability Detail
The vulnerability arises from a permission check bug in the net/nfc/rawsock.c file. It allows an attacker to bypass the permission check and potentially perform unauthorized operations or access sensitive information through NFC raw sockets. The specific technical details of the bug have not been provided in the vulnerability report.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability. It is recommended to apply the fix by updating the Linux Kernel to the patched version.
Conclusion
The permission check bug in the net/nfc/rawsock.c file of the Linux Kernel could potentially allow unauthorized operations or access to sensitive information through NFC raw sockets. It is crucial to update the Linux Kernel to version v5.10.44 or later to fix this vulnerability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, if successfully exploited, it could allow an attacker to perform unauthorized operations or access sensitive information through NFC raw sockets.
You can use the Vulert Playground (https://vulert.com/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 monitoring and alerts for open-source vulnerabilities, including this one.
No known exploit for this vulnerability has been reported at this time. However, it is still important to apply the fix to ensure the security of your system.
The report does not provide information on whether this vulnerability can be exploited remotely. However, it is always recommended to apply security patches and updates to mitigate potential risks.
The only known mitigation for this vulnerability is to update the Linux Kernel to version v5.10.44 or later. It is important to regularly check for updates and apply them promptly to ensure the security of your system.
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