Vulnerability in ethtool: Do Not Perform Operations on Unregistered Net Devices
Summary
GSD-2021-1002589: ethtool: do not perform operations on net devices being unregistered. Affects Kernel versions >= 041b1c5d4a53e97fc9e029ae32469552ca12cb9b, < cfd719f04267108f5f5bf802b9d7de69e99a99f9. No fix is published. How to fix ↓
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Background
The ethtool package is a command-line utility used for querying and configuring network interface settings in Linux systems. It provides information about network devices, such as link status, driver details, and statistics. The package is an essential tool for network administrators and developers working with network interfaces. However, a vulnerability has been discovered in ethtool that allows operations to be performed on net devices that are being unregistered, leading to potential security risks.
Vulnerability Detail
The vulnerability in ethtool arises from the improper handling of net devices that are being unregistered. When certain operations are performed on these devices, it can result in security vulnerabilities. The impact and attack plausibility of this vulnerability have not been proven yet. The vulnerability was introduced in Linux Kernel version v5.6 and has been fixed in version v5.15.8 by commit cfd719f04267108f5f5bf802b9d7de69e99a99f9. For more technical details, please refer to the references link.
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. The recommended approach is to apply the fix by updating the Linux Kernel.
Conclusion
The vulnerability in ethtool that allows operations on unregistered net devices can pose potential security risks. It is crucial to update the Linux Kernel to version v5.15.8 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
ethtool is a command-line utility used for querying and configuring network interface settings in Linux systems.
The impact of this vulnerability is not yet proven, but it has the potential to introduce security risks by allowing operations on unregistered net devices.
To fix this vulnerability, update the Linux Kernel to version v5.15.8 or later.
There is no specific workaround mentioned for this vulnerability. Updating the Linux Kernel is the recommended solution.
For more technical details, please refer to the references link provided in the vulnerability details.
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