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New Rowhammer Attack Bypasses Existing Defenses

October 6, 2017

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A group of security researchers has discovered a new type of attack that can exploit the Rowhammer vulnerability in DRAM chips that was uncovered several years ago, effectively bypassing existing defenses.

In a newly published paper (PDF), eight researchers from Graz University of Technology, the University of Pennsylvania (and University of Maryland), and University of Adelaide reveal attack methods that can allegedly bypass even a combination of defenses against Rowhammer.

In March 2015, Google demonstrated that the Rowhammer bug affects some dynamic random-access memory (DRAM) chips and can be exploited to gain kernel privileges on Linux systems. Although initially discovered in 2012, the issue was not documented until 2014.

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