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> Yes, and this is actually the problem. Without safe hardware, it is almost impossible to write safe software. Software that attempts a hostile rowhammer atta
by throwaway81523 5y ago
> Yes, and this is actually the problem. Without safe hardware, it is almost impossible to write safe software.
Software that attempts a hostile rowhammer attack aims to be unsafe by definition. It's not a matter of trying and failing to be safe. Rather, we're seeing that it's very difficult to build hardware and software that prevents hostile code from running amuck: if the attacker can run hostile code on your computer at all, you have already lost. That's bad news for cloud hosts and confirms what we already knew about web scripting, but doesn't seem all THAT bad for the rest of us.
Of course it's possible to build computers with no DRAM at all (i.e. only SRAM, which costs more). That is not economically sane for big servers, but might be the right thing to do for security sensitive components.
- _0w8t 5y agoThe sizes of current CPU caches is enough to run a lot of code…