Vulnerability in xprtrdma Package: Fix cwnd update ordering
Summary
GSD-2021-1000332: xprtrdma: Fix cwnd update ordering. Affects Kernel versions >= 2ae50ad68cd79224198b525f7bd645c9da98b6ff, < eddae8be7944096419c2ae29477a45f767d0fcd4. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The xprtrdma package is a component of the Linux Kernel ecosystem. It provides support for Remote Direct Memory Access (RDMA) over RPC (Remote Procedure Call). RDMA allows for high-speed data transfers between remote systems with low latency. The xprtrdma package is responsible for managing the RDMA transport layer within the kernel. It is utilized by applications that require efficient and high-performance network communication.
Vulnerability Detail
The identified vulnerability in the xprtrdma package relates to the ordering of congestion window (cwnd) updates. The cwnd is a parameter that determines the amount of data a sender can transmit without receiving an acknowledgment from the receiver. In certain scenarios, the cwnd update ordering in the xprtrdma package can be incorrect, potentially leading to suboptimal network performance or even network congestion. This vulnerability was introduced in version v5.5 of the Linux Kernel and has been fixed in version v5.10.38.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No workaround has been provided for this vulnerability. It is necessary to apply the fix by updating the Linux Kernel.
Conclusion
The xprtrdma package in the Linux Kernel has been found to have a vulnerability related to cwnd update ordering. This vulnerability can impact network performance and congestion. It is crucial to update the Linux Kernel to version v5.10.38 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can result in suboptimal network performance or network congestion, affecting applications that rely on efficient and high-performance network communication.
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, including this one.
At the time of this report, no known exploits for this vulnerability have been disclosed. However, it is important to apply the fix promptly to mitigate any potential risks.
The recommended approach is to update the entire Linux Kernel to the fixed version. Patching only the xprtrdma package may not address all potential dependencies and could introduce compatibility issues.
You can refer to the vulnerability details in the GSD Database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000332.json) for more information and references.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
