This paper proposes an effective protection scheme called Alert Refresh System. The proposed scheme has a low implementation overhead.

Abstract— Modern DRAM cells are known to be vulnerable to. RowHammer attacks because they are sensitive to electrical interference between adjacent rows.

This paper investigates secure low-cost in-DRAM trackers for mitigating Rowhammer (RH). In-DRAM solutions have the advantage that they can solve the RH problem ...

Jul 13, 2024 · Second, ALERT-Back-off (ABO) protocol that can pause the memory controller to allow the DRAM chips to have time to perform Rowhammer mitigation.

TRRespass shows that even the latest generation DDR4 chips with in-DRAM TRR, immune to all known RowHammer attacks, are often still vulnerable.

ABSTRACT. Rowhammer is a serious security problem of contemporary dy- namic random-access memory (DRAM) where reads or writes of bits can flip other bits.

The RowHammer vulnerability in DRAM is a critical threat to system security. To protect against RowHammer, vendors commit to security-through-obscurity ...

Oct 4, 2024 · RowHammer solutions perform preventive actions (e.g., refresh neighbor rows of the hammered row) that mitigate such bitflips to preserve memory ...

Jun 11, 2021 · Finally, for DDR4, Panopticon leverages ALERTn to stop a memory controller from issuing new DRAM commands whenever it needs time to refresh ...

Nov 7, 2024 · While refreshing these “victim” rows can restore charge and counteract the effects of a RowHammer attack, researchers have demonstrated that ...