Vulnerability in Kernel package: ipack: ipoctal: fix module reference leak
Summary
GSD-2021-1001556: ipack: ipoctal: fix module reference leak. Affects Kernel versions >= 82a82340bab6c251e0705339f60763718eaa2a22, < 9c5b77a7ffc983b2429ce158b50497c5d3c86a69. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system, responsible for managing the system's core functions and providing an interface between hardware and software. It includes various modules that handle different aspects of system operations. One such module is ipack, which is used for managing input/output operations. The ipoctal module within ipack is responsible for handling octal devices. However, a vulnerability has been discovered in the ipoctal module that results in a module reference leak.
Vulnerability Detail
The vulnerability in the ipoctal module of the Kernel package allows for a module reference leak. This means that when the module is loaded and unloaded, it fails to properly release references to the module, leading to a resource leak. An attacker could potentially exploit this vulnerability to exhaust system resources, resulting in a denial-of-service condition or other adverse effects. The vulnerability was introduced in version v3.18 of the Linux Kernel and has been fixed in version v4.19.209.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround available for this vulnerability. The recommended approach is to apply the fix by updating the Kernel package to the latest version.
Conclusion
The ipoctal module in the Kernel package has a vulnerability that allows for a module reference leak. This can result in resource exhaustion and potential denial-of-service conditions. It is crucial to update the Kernel package to the fixed version to mitigate this vulnerability. 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 condition or other adverse effects by exhausting system resources.
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 Vulert will analyze it for any open-source vulnerabilities, including this one.
At the time of this report, there are no known exploits for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate any potential risks.
No, this vulnerability requires local access to the system in order to exploit it.
The recommended solution is to update the Kernel package to the latest version. However, if updating is not feasible, you can consider implementing additional security measures, such as restricting access to the affected module or monitoring system resources to detect any abnormal behavior.
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