Uninitialized Value in r871xu_drv_init() in Kernel
Summary
GSD-2022-1003936: staging: rtl8712: fix uninit-value in r871xu_drv_init(). Affects Kernel versions < 277faa442fe0c59f418ac53f47a78e1266addd65. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionalities and interfaces between hardware and software. It manages system resources, facilitates communication between software components, and ensures the stability and security of the system. The rtl8712 driver is a staging driver in the Kernel that supports Realtek RTL8712U Wireless LAN devices. This driver allows users to connect to wireless networks using these devices. However, a vulnerability has been discovered in the r871xu_drv_init() function of the rtl8712 driver, which can lead to uninitialized values being used, potentially resulting in undefined behavior or security issues.
Vulnerability Detail
The vulnerability in the r871xu_drv_init() function of the rtl8712 driver arises from the usage of uninitialized values. When the driver is initialized, certain variables may not be properly initialized, leading to unpredictable behavior. This can potentially be exploited by an attacker to manipulate the uninitialized values and cause a denial-of-service (DoS) condition or execute arbitrary code with kernel privileges. The impact and attack plausibility of this vulnerability have not been proven yet, but it is important to address it to ensure the stability and security of the system.
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 updating their Linux Kernel to the recommended version.
Conclusion
In conclusion, the r871xu_drv_init() function in the rtl8712 driver of the Linux Kernel is vulnerable to uninitialized values. While the impact and attack plausibility have not been proven, it is crucial to update the Kernel to version v4.14.283 or later to fix this vulnerability. By doing so, the uninitialized values will be properly initialized, reducing the risk of potential security issues. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven, but it could potentially lead to a denial-of-service (DoS) condition or arbitrary code execution with kernel privileges.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file, and Vulert will analyze it in real-time and alert you if any open-source vulnerabilities, including this one, are found.
Yes, a patch is available in the Linux Kernel version v4.14.283. It is recommended to update your Kernel to this version or a later version to fix the vulnerability.
The remote exploitability of this vulnerability is not yet determined. However, it is always recommended to apply security updates and patches to mitigate potential risks.
There are no known instances of this vulnerability being exploited in the wild. However, it is important to address it proactively to prevent any potential security incidents.
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