Buffer Overflow Vulnerability in IB/qib Package
Summary
UVI-2021-1001987: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields. Affects Kernel versions >= f931551bafe1f10ded7f5282e2aa162c267a2e5d, < 73d2892148aa4397a885b4f4afcfc5b27a325c42. No fix is published. How to fix ↓
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Background
The IB/qib package is a part of the Linux Kernel ecosystem and is responsible for providing InfiniBand support for QLogic InfiniBand host channel adapters. It enables high-speed communication between servers and storage systems. The package includes a struct called qib_user_sdma_pkt, which is used for handling user space data movement operations. However, a buffer overflow vulnerability has been discovered in the fields of this struct, which could potentially be exploited by attackers.
Vulnerability Detail
The buffer overflow vulnerability in the struct qib_user_sdma_pkt fields allows an attacker to overwrite adjacent memory locations, leading to potential code execution or system crashes. This vulnerability was introduced in version v2.6.35 of the Linux Kernel and has been fixed in version v4.19.216. 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
There is no specific workaround mentioned for this vulnerability.
Conclusion
The buffer overflow vulnerability in the IB/qib package's struct qib_user_sdma_pkt fields can have serious security implications. It is crucial to update the Linux Kernel to version v4.19.216 or later to protect against this vulnerability. For further support and assistance in vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability could range from potential code execution to system crashes, depending on how it is exploited.
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 and it will provide real-time alerts for open-source vulnerabilities.
As of now, there is no known exploit for this vulnerability. However, it is important to update to the fixed version to mitigate any potential risks.
The vulnerability specifically affects the IB/qib package in the Linux Kernel. However, it is always recommended to keep all software and dependencies up to date to ensure overall security.
You can find more information about this vulnerability in the Open Source Vulnerability database maintained by the Cloud Security Alliance. The specific vulnerability ID is UVI-2021-1001987.
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