Vulnerability in Kernel package: ipack: ipoctal: fix module reference leak
Summary
GSD-2021-1001530: ipack: ipoctal: fix module reference leak. Affects Kernel versions >= 82a82340bab6c251e0705339f60763718eaa2a22, < dde4c1429b97383689f755ce92b4ed1e84a9c92b. No fix is published. How to fix ↓
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Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware, software, and processes. The ipack module within the Kernel package is responsible for handling input/output operations for octal devices. This vulnerability specifically affects the ipoctal module, which suffers from a module reference leak. This means that when the module is loaded and unloaded, it fails to properly release references, leading to potential memory leaks and resource exhaustion.
Vulnerability Detail
The vulnerability in the ipoctal module of the Kernel package allows an attacker to exploit the module reference leak. By repeatedly loading and unloading the module, an attacker can exhaust system resources and potentially cause a denial-of-service (DoS) condition. This vulnerability was introduced in version v3.18 of the Linux Kernel and has been fixed in version v4.14.249. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, as a general best practice, it is advisable to implement strict access controls and monitoring mechanisms to detect and prevent unauthorized module loading and unloading. Additionally, regular system updates and patching should be performed to mitigate potential vulnerabilities.
Conclusion
The vulnerability in the ipoctal module of the Kernel package can potentially lead to a denial-of-service (DoS) condition due to resource exhaustion. It is crucial to update the Linux Kernel package to version v4.14.249 or later to mitigate this vulnerability. Regular system updates and patching should be performed to ensure the latest security fixes are applied. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can potentially lead to a denial-of-service (DoS) condition due to resource exhaustion. However, the actual impact and attack plausibility have not been proven.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it in real-time to identify any open-source vulnerabilities, including this one.
As of now, there is no known exploit for this vulnerability. However, it is always recommended to apply security patches and updates to mitigate potential risks.
The details regarding remote exploitation of this vulnerability have not been provided. However, it is important to keep the Kernel package updated to address any potential security vulnerabilities.
The recommended solution is to update the Linux Kernel package to the fixed version. It is not advisable to implement alternative solutions or workarounds without proper testing and validation, as they may introduce other security risks.
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