Vulnerability in Kernel package: can: mcba_usb
Summary
GSD-2022-1002415: can: mcba_usb: properly check endpoint type. Affects Kernel versions >= 51f3baad7de943780ce0c17bd7975df567dd6e14, < 5598442edc29e8f6f2380e4b471dc1a3fcd80508. 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. It provides an interface between the hardware and software layers, allowing applications to communicate with the underlying system resources. The 'can: mcba_usb' module within the Kernel package is specifically designed to handle USB communication for Controller Area Network (CAN) devices. This module enables the system to interact with CAN devices connected via USB. However, a vulnerability has been identified in the 'can: mcba_usb' module, which could potentially be exploited by attackers to gain unauthorized access or execute arbitrary code on the system.
Vulnerability Detail
The vulnerability in the 'can: mcba_usb' module arises from improper checking of the endpoint type. This flaw allows an attacker to manipulate the endpoint type, leading to potential security breaches. The impact and attack plausibility of this vulnerability have not been proven yet. However, if successfully exploited, it could result in unauthorized access to sensitive information, system compromise, or the execution of malicious code. The vulnerability was introduced in version v4.12 of the Linux Kernel and has been fixed in version v4.14.276 by commit 5598442edc29e8f6f2380e4b471dc1a3fcd80508.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can disable or remove the 'can: mcba_usb' module from the Kernel package if it is not essential for their system's functionality. This can be achieved by blacklisting the module or modifying the Kernel configuration to exclude it during the build process. However, it is important to note that this workaround may impact the functionality of CAN devices connected via USB.
Conclusion
The vulnerability in the 'can: mcba_usb' module of the Kernel package poses a potential security risk, allowing attackers to manipulate the endpoint type and potentially gain unauthorized access or execute arbitrary code. It is crucial to update the Linux Kernel package to the fixed version or apply the recommended workaround to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a core component of the Linux operating system, responsible for managing system functions and providing an interface between hardware and software layers.
The 'can: mcba_usb' module is a part of the Kernel package that handles USB communication for Controller Area Network (CAN) devices.
If successfully exploited, this vulnerability could lead to unauthorized access, system compromise, or the execution of arbitrary code.
To fix this vulnerability, it is recommended to update the Linux Kernel package to version v4.14.276 or later.
As a temporary workaround, users can disable or remove the 'can: mcba_usb' module from the Kernel package.
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