Vulnerability in Linux Kernel: bus: mhi: core: Validate channel ID when processing command completions
Summary
GSD-2021-1001234: bus: mhi: core: Validate channel ID when processing command completions. Affects Kernel versions >= 1d3173a3bae7039b765a0956e3e4bf846dbaacb8, < 3efec3b4b16fc7af25676a94230a8ab2a3bb867c. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Linux Kernel is a widely used open-source operating system kernel that serves as the foundation for various Linux distributions. It provides essential functionality for the system, including device drivers, memory management, and process scheduling. The bus subsystem in the Linux Kernel facilitates communication between different components, such as buses and devices. One of the bus types supported is the MHI (Mobile High-Definition Link) bus, which is commonly used in mobile devices for interconnecting various components. The MHI core module in the Linux Kernel handles the management and communication of MHI channels. A vulnerability has been identified in the MHI core module that could potentially be exploited by attackers.
Vulnerability Detail
The vulnerability in the MHI core module of the Linux Kernel arises from a lack of validation of channel IDs when processing command completions. This could allow an attacker to manipulate or spoof channel IDs, leading to various security issues. By exploiting this vulnerability, an attacker may be able to execute arbitrary code, escalate privileges, or cause denial-of-service conditions. The impact and attack plausibility of this vulnerability have not yet been proven, but it is essential to address it to mitigate potential risks.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
As a workaround, if updating the Linux Kernel is not immediately feasible, you can consider implementing access controls or restrictions to limit the exposure of the MHI core module. This may involve configuring firewall rules or other security measures to restrict access to the affected components. However, applying the official fix by updating the Linux Kernel is strongly recommended to fully address the vulnerability.
Conclusion
The vulnerability in the MHI core module of the Linux Kernel poses potential security risks that could be exploited by attackers. It is crucial to update the Linux Kernel to the recommended version or apply the provided workaround to mitigate these risks. For further support and assistance in vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The Linux Kernel is an open-source operating system kernel that forms the core of various Linux distributions. It provides essential functionality for the system, including device drivers, memory management, and process scheduling.
The MHI (Mobile High-Definition Link) bus is a bus type supported by the Linux Kernel. It is commonly used in mobile devices for interconnecting various components.
The MHI core module in the Linux Kernel handles the management and communication of MHI channels. It is responsible for facilitating communication between different components connected via the MHI bus.
This vulnerability could allow an attacker to manipulate or spoof channel IDs, leading to various security issues. These may include executing arbitrary code, escalating privileges, or causing denial-of-service conditions.
To fix this vulnerability, update the Linux Kernel to version v5.10.54 or later. Follow the standard procedures for updating the kernel on your specific Linux distribution.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
