Vulnerability in Kernel package: net: usb: ax88179_178a needs FLAG_SEND_ZLP
Summary
GSD-2022-1004788: net: usb: ax88179_178a needs FLAG_SEND_ZLP. Affects Kernel versions < c46cc6297180a889449ebf1724ff2fa231532b89. No fix is published. How to fix ↓
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Background
The Kernel package is a crucial component of the Linux operating system, responsible for managing the system's core functions and facilitating communication between hardware and software. It provides essential services and drivers for various devices, including USB controllers. One such driver is ax88179_178a, which enables USB-to-Ethernet connectivity. However, this driver has a vulnerability that requires the FLAG_SEND_ZLP flag to be set properly.
Vulnerability Detail
The vulnerability in the ax88179_178a driver arises from the improper handling of the FLAG_SEND_ZLP flag. This flag is essential for ensuring proper data transfer between the USB controller and the connected Ethernet device. Without setting this flag correctly, data packets may be truncated or corrupted, leading to potential data loss or security issues. An attacker could exploit this vulnerability to manipulate or intercept network traffic, potentially compromising the integrity and confidentiality of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If updating the Kernel is not immediately feasible, a temporary workaround can be implemented by manually setting the FLAG_SEND_ZLP flag in the ax88179_178a driver code. Here is an example of how to set the flag:
// Set the FLAG_SEND_ZLP flag
usb_set_flag(interface->dev, FLAG_SEND_ZLP);
Please note that this workaround is not a permanent solution and should be followed by updating the Kernel as soon as possible.
Conclusion
In conclusion, the Kernel package's ax88179_178a driver has a vulnerability that can lead to data loss and compromise system security. It is crucial to update the Linux Kernel to version v4.19.254 or later to fix this issue. If immediate updating is not possible, a temporary workaround can be implemented by manually setting the FLAG_SEND_ZLP flag. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially lead to data loss, network manipulation, and compromise the security of the system.
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 analyze and alert you in real-time if the vulnerability is present.
At the time of this report, no known exploits for this vulnerability have been identified. However, it is crucial to apply the recommended fix or workaround to mitigate the risk.
The fix for this vulnerability requires updating the Linux Kernel to version v4.19.254 or later. Ensure that your system meets the requirements for the Kernel update and follow the appropriate procedures for your specific distribution.
You can find more information about this vulnerability, including the fix commit and related discussions, in the Linux Kernel repository. Please refer to the provided source link in the vulnerability details section.
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