content: I'm not sure you understood the article. The vulnerability in question is hardware oriented: they only used JavaScript to demonstrate it.  Rowhammer could theoretically be exploited by almost any computer process. It doesn't matter what software/language/operating-system is used. It is a CPU security hole - which is something that can't be fixed without a major BIOs update. Assuming one is provided, and the user is savvy enough to install it.    For now, it has only been demonstrated locally.