ax25: Fix ax25 session cleanup problems in Kernel
Summary
GSD-2022-1002965: ax25: Fix ax25 session cleanup problems. Affects Kernel versions >= 76ff66bb3b22f202c226ddbb0a811f8fb8aab2fa, < d6b3e4d3336028269aeec7dc6d3a140a7faa28db. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that provides core functionality and acts as an interface between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the stability and security of the system. The ax25 module in the Kernel is responsible for implementing the AX.25 protocol, which is used for packet radio communication. This protocol is commonly used by amateur radio operators to establish connections and exchange data over radio waves. However, a vulnerability has been discovered in the ax25 module that can lead to session cleanup problems.
Vulnerability Detail
The vulnerability in the ax25 module of the Kernel can result in session cleanup problems. When a session is terminated, the ax25 module fails to properly clean up the associated resources, leading to potential memory leaks and resource exhaustion. An attacker could exploit this vulnerability by establishing multiple sessions and intentionally terminating them, causing the system to run out of resources and potentially leading to a denial of service (DoS) condition. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
No workaround has been provided for this vulnerability.
Conclusion
The ax25 module in the Kernel has been found to have a vulnerability related to session cleanup problems. This vulnerability can potentially lead to memory leaks and resource exhaustion, impacting the stability and security of the system. It is recommended to update the Kernel to the latest version to fix this vulnerability. For further support on vulnerability remediation, you can contact DevNack.com.
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FAQ
The ax25 module in the Kernel is responsible for implementing the AX.25 protocol, which is used for packet radio communication. It allows amateur radio operators to establish connections and exchange data over radio waves.
The vulnerability in the ax25 module can lead to session cleanup problems, resulting in memory leaks and resource exhaustion. This could potentially lead to a denial of service (DoS) condition.
There is no evidence of this vulnerability being exploited in the wild. However, it is important to apply the necessary updates to ensure the security and stability of the system.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze the dependencies and alert you if any vulnerabilities are found.
For more information about this vulnerability, you can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002965.json).
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