net: caif: add proper error handling
Summary
GSD-2021-1000772: net: caif: add proper error handling. Affects Kernel versions >= 7c18d2205ea76eef9674e59e1ecae4f332a53e9e, < d6db727457dd29938524f04b301c83ac67cccb87. 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 net package in the Linux Kernel is responsible for handling network-related operations. It provides various protocols and interfaces for communication between different network layers. The caif module within the net package is specifically designed for the CAIF (Common Asynchronous Interface Framework) protocol, which is used for communication between wireless devices and host systems. The caif module allows for the establishment of connections and data transfer between these devices. However, a vulnerability has been identified in the caif module that could potentially lead to security issues.
Vulnerability Detail
The vulnerability in the caif module arises from a lack of proper error handling. When certain error conditions occur during the establishment of connections or data transfer, the caif module fails to handle these errors correctly. This can result in various security risks, such as denial of service (DoS) attacks, information disclosure, or even remote code execution. Attackers may exploit this vulnerability to disrupt network communication, gain unauthorized access to sensitive information, or execute arbitrary code on the affected system.
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
If updating the Linux Kernel is not immediately feasible, a temporary workaround can be implemented. This involves disabling or blocking access to the caif module, effectively preventing any potential exploitation of the vulnerability. However, this workaround may impact the functionality of wireless devices that rely on the caif module for communication.
Conclusion
The caif module in the Linux Kernel is vulnerable to a security issue due to improper error handling. This vulnerability can potentially lead to various security risks, including DoS attacks, information disclosure, and remote code execution. It is crucial to update the Linux Kernel to version v5.10.43 or later to mitigate this vulnerability. If immediate updating is not possible, a temporary workaround of disabling or blocking access to the caif module can be implemented. For further assistance and support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The caif module is a component of the net package in the Linux Kernel that provides support for the CAIF (Common Asynchronous Interface Framework) protocol. It enables communication between wireless devices and host systems.
The vulnerability in the caif module can lead to various security risks, including denial of service (DoS) attacks, information disclosure, and remote code execution. Attackers may exploit this vulnerability to disrupt network communication, gain unauthorized access to sensitive information, or execute arbitrary code on the affected system.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.43 or later. This update includes the necessary fixes to ensure proper error handling in the caif module.
Yes, if updating the Linux Kernel is not immediately feasible, a temporary workaround is to disable or block access to the caif module. However, this workaround may impact the functionality of wireless devices that rely on the caif module for communication.
For more information about this vulnerability, you can refer to the provided references link. Additionally, you can reach out to info@devnack.com for further support on vulnerability remediation.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
