Row hammer

EN Texto em inglês Ainda não há artigo no seu idioma: trecho em inglês.

Rowhammer (also written as row hammer or RowHammer) is a computer security exploit that takes advantage of an unintended and undesirable side effect in dynamic random-access memory (DRAM) in which memory cells interact electrically between themselves by leaking their charges, possibly changing the contents of nearby memory rows that were not addressed in the original memory access. This circumvention of the isolation between DRAM memory cells results from the high cell density in modern DRAM, and can be triggered by specially crafted memory access patterns that rapidly activate the same memory rows numerous times. The Rowhammer effect has been used in some privilege escalation computer security exploits, and network-based attacks are also theoretically possible. Different hardware-based techniques exist to prevent the Rowhammer effect from occurring, including required support in some processors and types of DRAM memory modules.