net: batman-adv: fix error handling
Summary
UVI-2021-1002137: net: batman-adv: fix error handling. Affects Kernel versions >= c6c8fea29769d998d94fcec9b9f14d4b52b349d3, < a8f7359259dd5923adc6129284fdad12fc5db347. No fix is published. How to fix ↓
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Background
The net package in the Linux Kernel is responsible for network-related functionality. It includes various modules and protocols for network communication. One of these modules is batman-adv, which stands for Better Approach To Mobile Ad-hoc Networking. It is a routing protocol that allows nodes in a wireless mesh network to communicate with each other. However, a vulnerability has been discovered in the error handling of batman-adv.
Vulnerability Detail
The vulnerability in batman-adv's error handling can potentially lead to security issues. Although the exact impact and attack plausibility have not been proven, it is crucial to address this vulnerability to prevent any potential exploitation. The vulnerability was introduced in version v2.6.38 of the Linux Kernel and has been fixed in version v5.14.16. The specific commit that addresses this vulnerability is a8f7359259dd5923adc6129284fdad12fc5db347.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The net package in the Linux Kernel, specifically the batman-adv module, has a vulnerability in its error handling. To address this vulnerability, it is crucial to update the Linux Kernel to version v5.14.16 or later. Regularly updating the kernel is also recommended to ensure the application of the latest security patches. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
Batman-adv is a routing protocol module in the Linux Kernel that enables communication between nodes in a wireless mesh network.
The exact impact of this vulnerability is not yet proven. However, it is important to address it to prevent potential security issues.
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.
To update the Linux Kernel, you can obtain the latest version from the official Linux Kernel repository and follow the installation instructions provided. It is recommended to regularly update the kernel to ensure the latest security patches are applied.
No specific workaround has been mentioned for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
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