KALI is a custom Debian distro build for security research; you can use it to test for vulns across your network/systems (best to have permission first; but just this week I got that from the directors of my work).
The DRAM exploit is indeed feasible but takes a lot of effort and some knowledge of analoigue as well as digital circuitry and how it all interacts. the code would need to get the timings exactly right; and once it is able to alter the memory it must also know from somewhere if the CPU is i386/x-64 or ARM as the opcodes are all different.
from what I read it does also need a target machine with certain kinds of especially fast DRAM; plenty of CPU power+ user who won’t notice a browser hogging up way more memory than expected. perhaps middle class rich gamers/techies might be more vulnerable; old guys like me who learned to do things like split a byte into its individual 8 bits for flags (as there weren’t enough resources to use a whole byte for one flag) might be more likely to notice it.
I also suspect this kind of code could be unearthed by putting an AM transistor radio next to your computer; it will make even more rough noise than usual.- Also site using this exploit is equally likely to cause the browser on a lesser specified target machine to crash hard which will be soon noticed.
Hat tip to Rad for the Kali info; I have a recovered PC sat on my office floor which I was going to use for Linux multimedia but the sound card channels on alsamixer keep randomly changing making it quite unfit for such a purpose. its not quite powerful enough to make it worth installing Win7 on it and deploying to an end user and I have an entire switch on my office wall for VOIP basestations and some old XP PCs running a “pirate radio station for the seniors” so I can use this for my security testing box 😉
