Vulnerability in Kernel: serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'
Summary
GSD-2021-1000679: serial: rp2: use 'request_firmware' instead of 'request_firmware_nowait'. Affects Kernel versions < 1cc57cb32c84e059bd158494f746b665fc14d1b1. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages communication between hardware and software. It provides essential functionality for the system, including device drivers, memory management, and process scheduling. The vulnerability affects the 'serial: rp2' module within the Kernel, which is responsible for handling serial communication on Raspberry Pi 2 devices.
Vulnerability Detail
The vulnerability in the 'serial: rp2' module arises from the improper use of the 'request_firmware_nowait' function instead of the more secure 'request_firmware' function. This vulnerability could potentially allow an attacker to exploit the firmware loading process and execute arbitrary code or perform privilege escalation. The issue was fixed in Linux Kernel version v4.14.235 by commit 1cc57cb32c84e059bd158494f746b665fc14d1b1.
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
The vulnerability in the 'serial: rp2' module of the Kernel has the potential to allow attackers to execute arbitrary code or perform privilege escalation. It is crucial to update the Linux Kernel to version v4.14.235 or later to mitigate this vulnerability. For further support and assistance with vulnerability remediation, you can contact DevNack.com.
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FAQ
The vulnerability could potentially allow an attacker to execute arbitrary code or perform privilege escalation on systems running the affected Kernel version.
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 and the tool will analyze it for any known vulnerabilities.
At the time of this report, there are no known exploits for this vulnerability. However, it is important to apply the necessary updates to mitigate the risk.
Yes, this vulnerability can be exploited remotely if the affected system is accessible over a network.
For more details about this vulnerability, you can refer to the source link in the database_specific section of the vulnerability details.
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