Vulnerability in IB/mlx5: Fix initializing CQ fragments buffer
Summary
GSD-2021-1000881: IB/mlx5: Fix initializing CQ fragments buffer. Affects Kernel versions >= 388ca8be00370db132464e27f745b8a0add19fcb, < 1ec2dcd680c71d0d36fa25638b327a468babd5c9. No fix is published. How to fix ↓
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Background
The IB/mlx5 package is a component of the Linux Kernel that provides InfiniBand and RoCE (RDMA over Converged Ethernet) support for Mellanox ConnectX network adapters. It allows for high-speed data transfer and low-latency communication between nodes in a cluster. The package is widely used in high-performance computing and data center environments.
Vulnerability Detail
The vulnerability in IB/mlx5 involves the improper initialization of the Completion Queue (CQ) fragments buffer. This issue was introduced in version v4.17 of the Linux Kernel and was fixed in version v4.19.195. An attacker could potentially exploit this vulnerability to cause a denial of service (DoS) or execute arbitrary code with kernel privileges. 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
No specific workaround has been provided for this vulnerability.
Conclusion
The vulnerability in IB/mlx5 related to the initialization of CQ fragments buffer can potentially lead to a denial of service or arbitrary code execution with kernel privileges. It is crucial to update the Linux Kernel to version v4.19.195 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
IB/mlx5 is a component of the Linux Kernel that provides InfiniBand and RoCE support for Mellanox ConnectX network adapters.
The impact of this vulnerability could range from a denial of service (DoS) to arbitrary code execution with kernel privileges.
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.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
You can find more information about this vulnerability in the GSD-2021-1000881.json file available at https://github.com/cloudsecurityalliance/gsd-database.
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