NFC: digital: Fix Possible Memory Leak in digital_in_send_sdd_req()
Summary
GSD-2021-1001902: NFC: digital: fix possible memory leak in digital_in_send_sdd_req(). Affects Kernel versions >= 2c66daecc4092e6049673c281b2e6f0d5e59a94c, < 6432d7f1d1c3aa74cfe8f5e3afdf81b786c32e86. No fix is published. How to fix ↓
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Background
The NFC (Near Field Communication) digital module is a component of the Linux Kernel. It provides support for digital communication with NFC devices. The digital_in_send_sdd_req() function is responsible for sending a Secure Data Download (SDD) request to an NFC device. However, a vulnerability has been discovered in this function that could lead to a memory leak.
Vulnerability Detail
The vulnerability in digital_in_send_sdd_req() function could result in a memory leak. This means that memory resources allocated during the execution of the function may not be properly released, leading to a gradual depletion of available memory. If this vulnerability is exploited, it could potentially cause system instability or even a denial of service condition. The vulnerability was introduced in version v3.13 of the Linux Kernel and has been fixed in version v5.14.14.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround provided for this vulnerability. The recommended solution is to update the Linux Kernel to the fixed version.
Conclusion
In conclusion, the NFC digital module in the Linux Kernel is vulnerable to a memory leak issue in the digital_in_send_sdd_req() function. This vulnerability can be mitigated by updating the Linux Kernel to version v5.14.14 or later. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability could result in a memory leak, potentially causing system instability or a denial of service condition.
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 alert you in real-time if the vulnerability is present.
No specific workaround is provided for this vulnerability. It is recommended to update the Linux Kernel to the fixed version.
The vulnerability was introduced in version v3.13 of the Linux Kernel. All versions between v3.13 and v5.14.14 are potentially affected.
You can find more information about this vulnerability in the GSD-2021-1001902.json file available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1001xxx/GSD-2021-1001902.json
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