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TRRespass research reveals rowhammering is alive and well – Naked Security


We’re not sure quite how dangerous this problem is likely to be in real life, but it has the most piratical name for a bug that we’ve seen in quite some time, me hearties.

TRRespass is how it’s known (rrrroll those Rs if you can!) – or plain old CVE-2020-10255 to the landlubber types amongst us.

Trespass is the legal name for the offence of going onto or into someone else’s property when you aren’t supposed to.

And TRR is short for Target Row Refresh, a high-level term used to describe a series of hardware protections that the makers of memory chips (RAM) have been using in recent years to protect against rowhammering.

So TRRespass is a series of cybersecurity tricks involving rowhammering to fiddle with data in RAM that you’re not supposed to, despite the presence of low-level protections that are supposed to keep you out.

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