New ZenHammer Attack Bypasses Rowhammer Defenses on AMD CPUs

Cybersecurity researchers from ETH Zurich have developed a new variant of the RowHammer DRAM dynamic random-access memory attack that, for the first time, successfully works against AMD Zen 2 and Zen 3 systems despite mitigations such as Target Row Refresh TRR. "This result proves that AMD system...

Row Hammer Privilege Escalation - Lenovo Support US

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Mac OS X Multiple EFI Vulnerabilities (EFI Security Update 2015-001)

The remote Mac OS X host is running EFI firmware that is affected by multiple vulnerabilities : - An insufficient locking issue exists, when resuming from sleep states, which allows a local attacker to write to the EFI flash memory by using an crafted application with root privileges. CVE-2015-36...