Researchers in the VUSec Lab at Vrije Universiteit Amsterdam have discovered a vulnerability that targets a device’s dynamic random access memory (DRAM) using an attack called DRAMMER. The Rowhammer attack involves executing a malicious application that repeatedly accesses the same “row” of transistors on a memory chip in a tiny fraction of a second in a process called “Hammering” The researchers successfully rooted Android handsets including Google’s Nexus 4 and Nexus 5; LG’s G4; Samsung Galaxy S4 and Galaxy S5.
Source: https://thehackernews.com/2016/10/root-android-phone-exploit.html