Memory Leak Vulnerability in mcba_usb Package
Summary
UVI-2021-1000929: can: mcba_usb: fix memory leak in mcba_usb. Affects Kernel versions >= 51f3baad7de943780ce0c17bd7975df567dd6e14, < 6f87c0e21ad20dd3d22108e33db1c552dfa352a0. No fix is published. How to fix ↓
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Background
The mcba_usb package is a component of the Linux Kernel, which is responsible for handling communication with MCBA USB devices. MCBA USB devices are used for CAN (Controller Area Network) communication in automotive applications. The mcba_usb package provides the necessary drivers and functionality to enable communication with these devices.
Vulnerability Detail
The vulnerability identified in the mcba_usb package is a memory leak issue. Specifically, when using mcba_usb, there is a flaw that causes memory to be allocated but not properly deallocated, leading to a memory leak. This vulnerability can be exploited by an attacker to exhaust available memory resources, potentially resulting in system instability or denial of service. The vulnerability was introduced in version v4.12 of the Linux Kernel and has been fixed in version v5.4.128.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. The recommended solution is to update the Linux Kernel to the fixed version.
Conclusion
The memory leak vulnerability in the mcba_usb package can be addressed by updating the Linux Kernel to version v5.4.128 or later. It is important to apply this update to prevent potential memory exhaustion and system instability. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
mcba_usb is a package in the Linux Kernel that provides drivers and functionality for communication with MCBA USB devices used in automotive applications.
The vulnerability can lead to a memory leak, potentially causing system instability or denial of service if memory resources are exhausted.
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 to the playground and it will provide real-time alerts for open-source vulnerabilities.
Yes, the vulnerability has been fixed in version v5.4.128 of the Linux Kernel. It is recommended to update to this version or a later one to address the issue.
You can find more information about this vulnerability in the official Linux Kernel repository. The vulnerability details are available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/UVI-2021-1000929.json.
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