Vulnerability in Kernel: bus: mhi: core: Validate channel ID when processing command completions
Summary
GSD-2021-1001176: bus: mhi: core: Validate channel ID when processing command completions. Affects Kernel versions >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8, < aed4f5b51aba41e2afd7cfda20a0571a6a67dfe9. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionalities and interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. The bus subsystem in the Kernel includes the MHI (Mobile High-Definition Link) core, which is responsible for handling communication with MHI devices. MHI devices are typically used in mobile devices and provide high-speed data transfer capabilities. However, a vulnerability has been discovered in the MHI core that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in the MHI core of the Kernel arises from a lack of validation of channel IDs when processing command completions. This oversight could allow an attacker to manipulate the channel ID, leading to various security issues. By exploiting this vulnerability, an attacker may be able to execute arbitrary code, escalate privileges, or cause a denial-of-service condition. The impact and attack plausibility of this vulnerability have not been proven yet, but it is crucial to address it to mitigate potential risks.
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. It is advised to apply the fix by updating the Kernel to the recommended version.
Conclusion
The vulnerability in the MHI core of the Kernel, which allows for the manipulation of channel IDs when processing command completions, poses potential security risks. It is crucial to update the Kernel to the recommended version to mitigate these risks. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could potentially allow an attacker to execute arbitrary code, escalate privileges, or cause a denial-of-service condition.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) to the playground and it will alert you in real-time if your software is vulnerable.
As of now, there are no known exploits for this vulnerability. However, it is crucial to apply the fix to prevent potential exploitation.
The recommended approach to mitigate this vulnerability is to update the Kernel to the fixed version. Applying the fix ensures that the vulnerability is properly addressed.
You can find more information about this vulnerability in the GSD-2021-1001176 JSON report available on the Cloud Security Alliance's GitHub repository: https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001176.json
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