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Rowhammer Attacks in Dynamic Random-Access Memory and Defense Methods
Dayeon Kim1, Hyungdong Park1, Inguk Yeo1
1Department of Computer Engineering, Hongik University, Seoul 04066, Republic of Korea.
Sensors (Basel, Switzerland)
|January 23, 2024
Summary
Rowhammer, a Dynamic Random-Access Memory (DRAM) vulnerability, allows attackers to induce bit flips through targeted row access. Understanding DRAM organization is crucial for mitigating these security threats.
Area of Science:
- Computer Science
- Cybersecurity
- Hardware Security
Background:
- Dynamic Random-Access Memory (DRAM) is prevalent in modern computing systems.
- Rowhammer, a hardware vulnerability in DRAM, was first identified in 2014.
- This vulnerability poses significant risks to system security, including data integrity and availability.
Purpose of the Study:
- To provide a comprehensive overview of the Rowhammer vulnerability in DRAM.
- To discuss the mechanisms and stages of Rowhammer attacks.
- To examine existing defense strategies and highlight the importance of DRAM organization.
Main Methods:
- Literature review of Rowhammer vulnerability research.
- Analysis of Rowhammer attack techniques.
- Exploration of current defense mechanisms and mitigation strategies.
Main Results:
- Rowhammer attacks exploit DRAM's physical structure to cause bit flips.
- Successful attacks can compromise system credentials, integrity, and availability.
- Understanding DRAM architecture is key to developing effective defenses.
Conclusions:
- Rowhammer remains a critical security concern for systems utilizing DRAM.
- Continued research into DRAM organization and security is essential.
- Implementing robust defense strategies is necessary to protect against Rowhammer attacks.
