Bluetooth: Memory Leak Vulnerability in Linux Kernel
Summary
GSD-2022-1001392: Bluetooth: use memset avoid memory leaks. Affects Kernel versions < e9e55acee9b7a737ec7f5161b94a78932a5514c8. No fix is published. How to fix ↓
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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, process management, memory management, and more. The Bluetooth subsystem in the Linux Kernel enables communication with Bluetooth devices.
This vulnerability in the Bluetooth subsystem can lead to memory leaks. Memory leaks occur when allocated memory is not properly deallocated, resulting in a gradual depletion of available memory. If left unaddressed, memory leaks can cause system instability, performance degradation, and potentially enable attackers to exploit the system.
Vulnerability Detail
The vulnerability arises from a missing memset call in the Bluetooth subsystem of the Linux Kernel. The memset function is used to initialize a block of memory with a specific value, typically zero. By not properly initializing memory, the system may leave sensitive information or uninitialized data accessible to attackers. This can potentially lead to information disclosure or enable attackers to manipulate the system's behavior.
The impact and attack plausibility of this vulnerability have not been proven yet, but it is crucial to address it to prevent potential security risks.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.16.20 or later. This fix is implemented through commit e9e55acee9b7a737ec7f5161b94a78932a5514c8. Updating the kernel ensures that the missing memset call is added, preventing memory leaks in the Bluetooth subsystem.
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Conclusion
The Bluetooth memory leak vulnerability in the Linux Kernel can pose security risks and system instability. It is crucial to update the Linux Kernel to version v5.16.20 or later to address this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability can range from system instability and performance degradation to potential information disclosure and manipulation by attackers.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your manifest file, such as package-lock.json, and Vulert will provide real-time alerts for open-source vulnerabilities.
No specific workaround is mentioned for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
As of now, there are no known exploits for this vulnerability. However, it is essential to address it promptly to mitigate potential risks.
You can find more information about this vulnerability in the GSD-2022-1001392 JSON report available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001392.json.
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