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by nine_k 972 days ago
Won't ECC memory be a sufficient defense against that? I think it was invented specifically to overcome random bit flips.

If so, server / cloud infrastructure is largely unaffected.
2 comments
nextaccountic 972 days ago
> I think it was invented specifically to overcome random bit flips

The trouble is that in an attack, the bit flips aren't random and uncorrelated but they are purposefully being made in a small memory region

All it takes is two bit flips to defeat most ECC

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sneak 972 days ago
https://arstechnica.com/information-technology/2018/11/poten...
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nine_k 972 days ago
«Importantly, the researchers haven't demonstrated that ECCploit works against ECC in DDR4 chips, a newer type of memory chip favored by higher-end cloud services. They also haven't shown that ECCploit can penetrate hypervisors or secondary Rowhammer defenses. Nonetheless, the bypass of ECC is a major milestone»

Wow anyway.

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pests 972 days ago
wait, did it or didn't it bypass ECC? First sentence doesnt line up with last sentence in the quote?
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