CVSS: 9.0EPSS: 0%CPEs: 12EXPL: 3CVE-2021-42114 – Scalable Rowhammering In the Frequency Domain to Bypass TRR Mitigations On Modern DDR4/LPDDR4X Devices
https://notcve.org/view.php?id=CVE-2021-42114
16 Nov 2021 — Modern DRAM devices (PC-DDR4, LPDDR4X) are affected by a vulnerability in their internal Target Row Refresh (TRR) mitigation against Rowhammer attacks. Novel non-uniform Rowhammer access patterns, consisting of aggressors with different frequencies, phases, and amplitudes allow triggering bit flips on affected memory modules using our Blacksmith fuzzer. The patterns generated by Blacksmith were able to trigger bitflips on all 40 PC-DDR4 DRAM devices in our test pool, which cover the three major DRAM manufac... • https://comsec.ethz.ch/research/dram/blacksmith • CWE-20: Improper Input Validation •
CVSS: 9.3EPSS: 1%CPEs: 6EXPL: 0CVE-2020-10255
https://notcve.org/view.php?id=CVE-2020-10255
10 Mar 2020 — Modern DRAM chips (DDR4 and LPDDR4 after 2015) are affected by a vulnerability in deployment of internal mitigations against RowHammer attacks known as Target Row Refresh (TRR), aka the TRRespass issue. To exploit this vulnerability, the attacker needs to create certain access patterns to trigger bit flips on affected memory modules, aka a Many-sided RowHammer attack. This means that, even when chips advertised as RowHammer-free are used, attackers may still be able to conduct privilege-escalation attacks a... • https://download.vusec.net/papers/trrespass_sp20.pdf • CWE-20: Improper Input Validation •