A new method of attack dubbed DRAMMER could be exploited to gain root access to millions of Android smartphones and take control of affected devices. The attack called Rowhammer, is not new, but this is the first time it was successfully used against target mobile devices. Experts exploited Android mechanism known as the ION memory allocator to give an app a direct access to the dynamic random access memory (DRAM) The attack could modify crucial bits of data allowing an attacker to root Android devices from major vendors, including Samsung, OnePlus, LG and Motorola.”]
Source: https://securityaffairs.co/wordpress/52677/hacking/drammer-android-attack.html