DVFSspy: Using Dynamic Voltage and Frequency Scaling as a Covert Channel for Multiple Procedures | |
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Author | |
Abstract |
Multicore Computing Security - Dynamic Voltage and Frequency Scaling (DVFS) is a widely deployed low-power technology in modern systems. In this paper, we discover a vulnerability in the implementation of the DVFS technology that allows us to measure the processor’s frequency in the userspace. By exploiting this vulnerability, we successfully implement a covert channel on the commercial Intel platform and demonstrate that the covert channel can reach a throughput of 28.41bps with an error rate of 0.53\%. This work indicates that the processor’s hardware information that is unintentionally leaked to the userspace by the privileged kernel modules may cause security risks. |
Year of Publication |
2022
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Date Published |
jan
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Publisher |
IEEE
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Conference Location |
Taipei, Taiwan
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ISBN Number |
978-1-66542-135-5
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URL |
https://ieeexplore.ieee.org/document/9712588/
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DOI |
10.1109/ASP-DAC52403.2022.9712588
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