NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() - Kernel
Summary
GSD-2021-1001915: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa(). Affects Kernel versions >= 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8, < 429054ec51e648d241a7e0b465cf44f6633334c5. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It manages system resources, facilitates communication between software and hardware, and ensures the stability and security of the system. The NFC (Near Field Communication) subsystem within the Kernel enables short-range wireless communication between devices. This vulnerability specifically affects the digital_tg_listen_mdaa() function within the NFC digital driver.
Vulnerability Detail
The digital_tg_listen_mdaa() function in the NFC digital driver of the Kernel is susceptible to a possible memory leak. A memory leak occurs when allocated memory is not properly released, leading to a gradual depletion of available memory resources. This vulnerability could potentially result in system instability, performance degradation, or even denial-of-service conditions. The issue was introduced in Kernel version v3.13 and has been fixed in version v4.4.290.
How To Fix
No fixed version is published for this vulnerability.
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Conclusion
In conclusion, the NFC digital driver in the Kernel is vulnerable to a possible memory leak in the digital_tg_listen_mdaa() function. This vulnerability can be mitigated by updating the Kernel to version v4.4.290 or later. No known exploits exist at the time of this report, but it is crucial to apply the necessary fixes to ensure system security and stability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability could potentially lead to memory exhaustion, system instability, performance degradation, or denial-of-service conditions.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and the tool will provide real-time alerts for open-source vulnerabilities, including this one.
At the time of this report, there are no known exploits for this vulnerability. However, it is still important to apply the necessary fixes to ensure system security and stability.
No specific workarounds have been identified for this vulnerability. It is recommended to update the Kernel to the fixed version or apply the specific commit that addresses the issue.
You can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001915.json) for more information about this specific vulnerability.
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