RowPress Vulnerability in Modern DRAM Chips
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Date
2024-07
Publication Type
Journal Article
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yes
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Abstract
Memory isolation is a critical property for system reliability, security, and safety. We demonstrate RowPress, a dynamic random-access memory (DRAM) read disturbance phenomenon different from the well-known RowHammer. RowPress induces bitflips by keeping a DRAM row open for a long period of time instead of repeatedly opening and closing the row. We experimentally characterize RowPress bitflips, showing their widespread existence in commodity off-the-shelf DDR4 DRAM chips. We demonstrate RowPress bitflips in a real system that already has RowHammer protection, and propose effective mitigation techniques that protect DRAM against both RowHammer and RowPress.
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published
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Volume
44 (4)
Pages / Article No.
60 - 69
Publisher
IEEE
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Software
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09483 - Mutlu, Onur / Mutlu, Onur