Legacy IPoIB Vulnerability in Kernel
Summary
GSD-2023-1002338: IB/IPoIB: Fix legacy IPoIB due to wrong number of queues. Affects Kernel versions >= ee0e9b2c4b9c35837553124b4912230a7e7c7212, < 7197460dcd43ff0e4a502ba855dd82d37c2848cc. 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 interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. The InfiniBand over IP (IB/IPoIB) protocol is used to enable communication between InfiniBand devices over IP networks. However, a vulnerability has been identified in the legacy IPoIB implementation within the Kernel.
Vulnerability Detail
The legacy IPoIB vulnerability arises from an incorrect number of queues being used. This vulnerability could potentially be exploited by an attacker to cause a denial-of-service (DoS) condition or execute arbitrary code with elevated privileges. The incorrect number of queues can lead to memory corruption or other unexpected behavior, compromising the integrity and stability of the system. This vulnerability was introduced in version v6.1.2 of the Linux Kernel and has been fixed in version v6.1.12.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can disable the legacy IPoIB feature if it is not required for their system. This can be done by modifying the Kernel configuration and recompiling it without the IPoIB module. However, this workaround should only be considered if the feature is not essential, as it may impact the functionality of certain applications or systems that rely on IPoIB.
Conclusion
The legacy IPoIB vulnerability in the Kernel can have serious security implications, potentially leading to a DoS condition or unauthorized code execution. It is crucial to update the Linux Kernel to version v6.1.12 or later to mitigate this vulnerability. Alternatively, users can disable the legacy IPoIB feature if it is not required. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially lead to a denial-of-service (DoS) condition or allow an attacker to execute arbitrary code with elevated privileges.
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 the playground will analyze it for any open-source vulnerabilities, including this one.
Yes, a patch has been released in version v6.1.12 of the Linux Kernel. It is recommended to update to this version or a later one to fix the vulnerability.
Yes, as a temporary workaround, you can disable the legacy IPoIB feature if it is not required for your system. However, this should only be considered if the feature is not essential, as it may impact the functionality of certain applications or systems that rely on IPoIB.
You can refer to the vulnerability details in the GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2023/1002xxx/GSD-2023-1002338.json) for more information about this vulnerability, including its impact and the fixed versions of the Linux Kernel.
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