Vulnerability in Kernel: iavf - Fix handling of dummy receive descriptors
Summary
GSD-2022-1004116: iavf: Fix handling of dummy receive descriptors. Affects Kernel versions >= efa14c3985828da3163f5372137cb64d992b0f79, < 6edb818732fc05fda495f5b3a749bd1cee01398b. 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 acts as an interface between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the overall stability and security of the system. The iavf module is responsible for handling Intel Ethernet Adaptive Virtual Function (AVF) devices. These devices are used for virtualization and network acceleration purposes. The vulnerability in the iavf module relates to the handling of dummy receive descriptors.
Vulnerability Detail
The vulnerability in the iavf module of the Kernel affects versions 5.3 to 5.18.14. It was introduced in version 5.3 and fixed in version 5.18.15. The issue arises from improper handling of dummy receive descriptors. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause a denial-of-service (DoS) condition. The impact and attack plausibility of this vulnerability have not been proven yet. It is crucial to update to the fixed version to mitigate the risk.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No specific workaround has been mentioned for this vulnerability.
Conclusion
The vulnerability in the iavf module of the Kernel, related to the handling of dummy receive descriptors, can potentially lead to arbitrary code execution or a denial-of-service (DoS) condition. It is crucial to update to the fixed version (5.18.15 or later) of the Linux Kernel to mitigate the risk. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could potentially allow an attacker to execute arbitrary code or cause a denial-of-service (DoS) condition.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it in real-time.
As of now, there is no known exploit for this vulnerability. However, it is important to update to the fixed version to mitigate the risk.
If you cannot immediately update the Kernel, it is recommended to implement other security measures such as network segmentation, access controls, and intrusion detection systems to minimize the potential impact of this vulnerability.
You can find more information about this vulnerability in the GSD-2022-1004116 JSON file available on the GitHub repository of the Cloud Security Alliance's GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004116.json).
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