Vulnerability in Kernel package: sfc: farch: fix TX queue lookup in TX event handling
Summary
GSD-2021-1000140: sfc: farch: fix TX queue lookup in TX event handling. Affects Kernel versions >= 12804793b17c0e19115a90d98f2f3df0cb79e233, < bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253. No fix is published. How to fix ↓
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Background
The Kernel package is a critical component of the Linux operating system, responsible for managing the system's core functionality. It provides an interface between the hardware and software layers, allowing applications to interact with the underlying system resources. The sfc module within the Kernel package is specifically related to Solarflare network adapters, providing support for efficient network communication. However, a vulnerability has been identified in the sfc module's TX event handling, which could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the sfc module's TX event handling arises from a flaw in the TX queue lookup process. This flaw could be exploited by an attacker to manipulate the TX queues, potentially causing a denial-of-service (DoS) condition or enabling unauthorized access to sensitive information. The impact and attack plausibility of this vulnerability have not been proven yet. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.10.36, specifically by commit bf2b941d0a6f2d3b9f5fa3c4c21bdd54f71ce253. The vulnerability was introduced in version v5.10 by commit 12804793b17c0e19115a90d98f2f3df0cb79e233.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, a vulnerability has been identified in the Kernel package's sfc module, specifically in the TX event handling. This vulnerability could potentially lead to a denial-of-service (DoS) condition or unauthorized access to sensitive information. It is crucial to update the Linux Kernel package to version v5.10.36 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could range from a denial-of-service (DoS) condition to unauthorized access to sensitive information. However, the actual impact and attack plausibility have not been proven yet.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert uses a manifest file like package-lock.json to monitor and alert in real-time for open-source vulnerabilities in the software.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel package to the fixed version.
The vulnerability was introduced in version v5.10 of the Linux Kernel and is fixed in version v5.10.36.
You can find more information about this vulnerability in the GSD-2021-1000140 entry of the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000140.json).
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