Memory Leak Vulnerability in NFC Digital Component of Linux Kernel
Summary
GSD-2021-1001916: NFC: digital: fix possible memory leak in digital_in_send_sdd_req(). Affects Kernel versions >= 2c66daecc4092e6049673c281b2e6f0d5e59a94c, < 74569c78aa84f8c958f1334b465bc530906ec99a. 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 and interfaces for hardware devices, including NFC (Near Field Communication) capabilities. NFC enables short-range wireless communication between devices, allowing for contactless data transfer and interaction. The digital component of NFC in the Linux Kernel is responsible for handling digital communication protocols and operations related to NFC functionality.
Vulnerability Detail
The vulnerability identified as GSD-2021-1001916 affects the digital component of NFC in the Linux Kernel. Specifically, the vulnerability resides in the digital_in_send_sdd_req() function. This function may result in a memory leak, potentially leading to resource exhaustion and system instability. An attacker could potentially exploit this vulnerability to exhaust system resources, causing denial-of-service conditions or other adverse effects. The vulnerability was introduced in version v3.13 of the Linux Kernel and has been fixed in version v4.4.290 by commit 74569c78aa84f8c958f1334b465bc530906ec99a.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
The memory leak vulnerability in the digital component of NFC in the Linux Kernel can have serious consequences, including resource exhaustion and system instability. It is crucial to update the Linux Kernel to the patched version to mitigate the risk of exploitation. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can potentially lead to memory leaks, which may result in resource exhaustion and system instability. It could be exploited by attackers to cause denial-of-service conditions or other adverse effects.
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, including this one, are found.
Currently, there are no known workarounds for this vulnerability. It is recommended to update the Linux Kernel to the patched version as soon as possible.
There is no information available regarding active exploitation of this vulnerability in the wild. However, it is always advisable to apply security patches promptly to mitigate potential risks.
You can find more information about this vulnerability in the GSD-2021-1001916 JSON report available in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001916.json).
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