A new variant of the Rowhammer attack can work around every known defense. Researchers have found a way to launch a new kind of Rowhammer attacks that is able to ignore all of the defenses that have been done up to now. They use a method called opcode flipping, which is a generic technique for exploiting bit flips in cached copies of binary files. This kind of exploit can escalate an attacker’s privileges, root a device, or cause denial-of-service to services like security software. The authors give no hints in their paper on how the attack might be mitigated.”]
Source: https://www.darkreading.com/abtv/rowhammer-attack-pounds-with-precision/a/d-id/737170