Vulnerability in Kernel package: RDMA/core: Set send and receive CQ before forwarding to the driver
Summary
GSD-2021-1002322: RDMA/core: Set send and receive CQ before forwarding to the driver. Affects Kernel versions >= 514aee660df493cd673154a6ba6bab745ec47b8c, < b70e072feffa0ba5c41a99b9524b9878dee7748e. No fix is published. How to fix ↓
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Background
The Kernel package is an integral part of the Linux operating system, responsible for managing core functionalities and providing an interface between hardware and software components. It includes various subsystems, such as networking, memory management, and device drivers. The RDMA (Remote Direct Memory Access) subsystem within the Kernel enables efficient data transfer between remote systems without involving the CPU. This vulnerability specifically affects the RDMA/core component.
Vulnerability Detail
The vulnerability in RDMA/core arises from a failure to properly set the send and receive Completion Queues (CQ) before forwarding them to the driver. This oversight can potentially lead to various security issues, although the exact impact and likelihood of exploitation have not been confirmed. The vulnerability was introduced in version v5.15 of the Linux Kernel and has been fixed in version v5.15.5 through commit b70e072feffa0ba5c41a99b9524b9878dee7748e. For more technical details, please refer to the provided references.
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 Kernel package's RDMA/core component highlights the importance of promptly updating software to the latest versions. By updating to Linux Kernel version v5.15.5 or later, users can ensure that their systems are protected against this vulnerability. For further assistance or support in addressing vulnerabilities, please contact DevNack.com.
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FAQ
The exact impact of this vulnerability is yet to be determined. However, it has the potential to be exploited for security breaches or other malicious activities.
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 to the playground 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 apply the recommended fix to mitigate any potential risks.
The possibility of remote exploitation exists, but it depends on various factors such as system configuration and network accessibility. Applying the fix is crucial to minimize the risk of remote exploitation.
At present, updating the Linux Kernel package to the recommended version is the primary solution to address this vulnerability. It is advisable to follow the official update process provided by the Linux distribution.
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