Critical AMD CPU Vulnerability Discovered by Google Researchers Allows Unauthorized Microcode Execution
Google security researchers unveil 'EntrySign' vulnerability in AMD Zen processors, exposing flaws in microcode signature verification that could compromise security features. The discovery highlights AMD's use of weak encryption standards and example keys, leading to potential unauthorized CPU modifications.
Critical AMD Processor Flaw 'EntrySign' Requires BIOS Updates to Prevent Code Injection
Researchers uncover major vulnerability in AMD processors that could allow attackers to bypass microcode signature verification and execute malicious code. The flaw, affecting Zen 1-4 architectures, requires BIOS updates to implement more secure signature validation.
AMD's Secure TSC Feature Set to Enhance Linux Virtualization Security
AMD's Secure Time Stamp Counter feature is ready to join the Linux kernel after two years of development, bringing enhanced security for virtual machines on EPYC processors. The implementation uses encrypted channels and prevents hypervisor manipulation of timestamp data.
Critical BadRAM Vulnerability Exposes Security Flaws in AMD's Trusted Computing Platform
Security researchers uncover a significant vulnerability in AMD's Secure Encrypted Virtualization technology, raising concerns for cloud computing security. The 'BadRAM' attack demonstrates weaknesses in hardware-based protection systems, though AMD has since implemented mitigations.