Academics from Vrije University in Amsterdam and ETH Zurich have published a new research paper describing yet another variation of the Rowhammer attack. Dubbed SMASH (Synchronized MAny-Sided Hammering), the technique can be used to successfully trigger the attack from JavaScript on modern DDR4 RAM cards. The researchers developed an end-to-end JavaScript exploit which can fully compromise the Firefox browser in 15 minutes on average, proving that web users continue to remain at risk from such attacks.
Source: https://thehackernews.com/2021/04/new-javascript-exploit-can-now-carry.html