Vulnerability in Kernel: ice - Avoid Crash from Unnecessary IDA Free
Summary
UVI-2021-1002166: ice: Avoid crash from unnecessary IDA free. Affects Kernel versions >= d25a0fc41c1f927bb914e72a03c1898052557406, < 73e30a62b19b9fbb4e6a3465c59da186630d5f2e. 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 functions and services to enable the proper functioning of the system. The 'ice' module is a driver for Intel Ethernet Connection E800 series devices. It allows the system to communicate with these network devices and utilize their capabilities. However, a vulnerability has been discovered in the 'ice' module that can lead to a crash due to an unnecessary IDA (Intel Dynamic Acceleration) free operation.
Vulnerability Detail
The vulnerability in the 'ice' module arises from an unnecessary IDA free operation. When certain conditions are met, the module attempts to free an IDA structure that has already been freed, leading to a crash. This vulnerability can be exploited by an attacker to cause a denial-of-service (DoS) condition, potentially disrupting the normal operation of the system. It is important to note that the impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a workaround, users can disable or unload the 'ice' module if it is not essential for their system's operation. This can be done by executing the following commands:
rmmod ice
Conclusion
In conclusion, a vulnerability has been discovered in the 'ice' module of the Linux Kernel, which can lead to a crash due to an unnecessary IDA free operation. It is recommended to update the Kernel to version v5.15 or later to fix the vulnerability. Alternatively, users can disable or unload the 'ice' module if it is not essential for their system's operation. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to a crash in the 'ice' module, causing a denial-of-service (DoS) condition. However, the actual impact and attack plausibility have not been proven yet.
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 Vulert will analyze it for open-source vulnerabilities, including this one.
Yes, the vulnerability has been fixed in the Linux Kernel version v5.15 by commit 73e30a62b19b9fbb4e6a3465c59da186630d5f2e. Users are advised to update their Kernel to version v5.15 or later to mitigate the vulnerability.
Yes, as a temporary workaround, you can disable or unload the 'ice' module if it is not essential for your system's operation. Execute the command 'rmmod ice' to unload the module.
You can find more information about this vulnerability in the official Linux Kernel repository (https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/) and the vulnerability database maintained by the Cloud Security Alliance (https://github.com/cloudsecurityalliance/gsd-database).
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