Beyond the Bridge: Contention-Based Covert and Side Channel Attacks on Multi-GPU Interconnect
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911862392619008 |
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| author | Zhang, Yicheng Nazaraliyev, Ravan Dutta, Sankha Baran Abu-Ghazaleh, Nael Marquez, Andres Barker, Kevin |
| author_facet | Zhang, Yicheng Nazaraliyev, Ravan Dutta, Sankha Baran Abu-Ghazaleh, Nael Marquez, Andres Barker, Kevin |
| contents | High-speed interconnects, such as NVLink, are integral to modern multi-GPU systems, acting as a vital link between CPUs and GPUs. This study highlights the vulnerability of multi-GPU systems to covert and side channel attacks due to congestion on interconnects. An adversary can infer private information about a victim's activities by monitoring NVLink congestion without needing special permissions. Leveraging this insight, we develop a covert channel attack across two GPUs with a bandwidth of 45.5 kbps and a low error rate, and introduce a side channel attack enabling attackers to fingerprint applications through the shared NVLink interconnect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_03877 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Beyond the Bridge: Contention-Based Covert and Side Channel Attacks on Multi-GPU Interconnect Zhang, Yicheng Nazaraliyev, Ravan Dutta, Sankha Baran Abu-Ghazaleh, Nael Marquez, Andres Barker, Kevin Cryptography and Security High-speed interconnects, such as NVLink, are integral to modern multi-GPU systems, acting as a vital link between CPUs and GPUs. This study highlights the vulnerability of multi-GPU systems to covert and side channel attacks due to congestion on interconnects. An adversary can infer private information about a victim's activities by monitoring NVLink congestion without needing special permissions. Leveraging this insight, we develop a covert channel attack across two GPUs with a bandwidth of 45.5 kbps and a low error rate, and introduce a side channel attack enabling attackers to fingerprint applications through the shared NVLink interconnect. |
| title | Beyond the Bridge: Contention-Based Covert and Side Channel Attacks on Multi-GPU Interconnect |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2404.03877 |