Researchers have discovered a trio of new side-channel attacks that can be used to compromise modern CPUs.
The attacks, called Collide+Power, Downfall, and Inception, involve hijacking the transient control flow of return instructions on all AMD Zen CPUs.
They exploit a previously discovered security vulnerability affecting AMD’s Zen 2 architecture-based processors.
Google has also disclosed CVE-2023-20593, which allows an attacker to bypass the software-hardware boundary established in modern processors, according to the authors of the papers.
Intel provides more details on the specific vulnerabilities they’ve found.
µMore recently, security researchers have demonstrated how to use Zenbleed, a less vulnerable security vulnerability, to gain access to personal and cloud computing data.
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