Vulnerability in liquidio package: Fix unintented sign extension of a left shift of a u16
Summary
UVI-2021-1000258: liquidio: Fix unintented sign extension of a left shift of a u16. Affects Kernel versions >= 5bc67f587ba7eaa8dd3976bfeff8f2b60718c871, < 769003fd970c05a2ad21fee5429dd5a49feefd09. No fix is published. How to fix ↓
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Background
The liquidio package is a component of the Linux Kernel ecosystem. It provides support for the Cavium LiquidIO Intelligent Server Adapter, which is a high-performance PCIe adapter designed for data centers. The package includes drivers and firmware for the adapter, enabling efficient packet processing and offloading tasks. However, a vulnerability has been discovered in the package that involves an unintended sign extension of a left shift of a u16 value.
Vulnerability Detail
The vulnerability in the liquidio package arises from an unintended sign extension of a left shift operation on a u16 value. This issue can potentially lead to unexpected behavior and security vulnerabilities in systems that utilize the Cavium LiquidIO Intelligent Server Adapter. The impact and attack plausibility of this vulnerability have not yet been proven. It is important to note that this vulnerability has been fixed in the Linux Kernel version v5.12.4 by commit 769003fd970c05a2ad21fee5429dd5a49feefd09. The vulnerability was introduced in version v4.9 by commit 5bc67f587ba7eaa8dd3976bfeff8f2b60718c871.
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 liquidio package in the Linux Kernel ecosystem has been found to have a vulnerability that involves an unintended sign extension of a left shift of a u16 value. While the impact and attack plausibility of this vulnerability have not been proven, it is recommended to update the Linux Kernel to version v5.12.4 or later to incorporate the fix. Additionally, keeping the liquidio package up to date is essential. For further support on vulnerability remediation, please reach out to DevNack.com.
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FAQ
The impact of this vulnerability is currently unknown as the attack plausibility has not been proven. However, it is important to apply the fix as a precautionary measure to ensure the security and stability of systems utilizing the Cavium LiquidIO Intelligent Server Adapter.
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 Vulert will analyze it for any open-source vulnerabilities, including this specific issue.
The remote exploitability of this vulnerability has not been determined. However, it is always recommended to apply security patches and updates to mitigate potential risks.
There are no known instances of this vulnerability being exploited at the moment. However, it is crucial to stay updated with the latest security patches to minimize the risk of exploitation.
You can find more information about this vulnerability in the official Linux Kernel repository. Additionally, you can reach out to info@devnack.com for further support and assistance regarding vulnerability remediation.
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