Zenbleed | Breaking Cybersecurity News | The Hacker News

In 2023, the cloud isn't just a technology—it's a battleground. Zenbleed, Kubernetes attacks, and sophisticated APTs are just the tip of the iceberg in the cloud security warzone. In collaboration with the esteemed experts from Lacework Labs, The Hacker News proudly presents an exclusive webinar: ' Navigating the Cloud Attack Landscape: 2023 Trends, Techniques, and Tactics .' Join us for an insightful session led by Jose Hernandez of Lacework Labs, where we dissect and analyze the year's most pressing cloud security issues. This webinar is not just about theory; it's a practical guide filled with actionable strategies to shield your organization from advanced threats in the cloud.  Highlights include: Kubernetes Security Breaches:  Explore the surge in Kubernetes-related vulnerabilities and the concerning increase in administrative plane abuses. Zenbleed in Focus:  Understand the far-reaching impact of the Zenbleed vulnerability and how Lacework Labs is...

A new security vulnerability has been discovered in AMD's Zen 2 architecture-based processors that could be exploited to extract sensitive data such as encryption keys and passwords. Discovered by Google Project Zero researcher Tavis Ormandy, the flaw – codenamed  Zenbleed  and tracked as  CVE-2023-20593  (CVSS score: 6.5) – allows data exfiltration at the rate of 30 kb per core, per second. The issue is part of a broader category of weaknesses called  speculative execution attacks , in which the optimization technique widely used in modern CPUs is abused to access cryptographic keys from CPU registers. "Under specific microarchitectural circumstances, a register in 'Zen 2' CPUs may not be written to 0 correctly," AMD  explained  in an advisory. "This may cause data from another process and/or thread to be stored in the YMM register , which may allow an attacker to potentially access sensitive information." Web infrastructure company Cloudflare no...

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