Spectre and Meltdown vulnerabilities ...

The recently discovered set of malicious actors (Spectre and Meltdown) which affect almost all the computing and mobile devices around the world, have created a buzz among the tech companies. As reported by Google Project Zero, Spectre and Meltdown vulnerabilities can be injected through the JavaScript code running in browser. It enables the attackers to read the system memory in CPUs including the ones from Intel, AMD, and ARM. Attackers can read sensitive information in the system like passwords, encryption keys, etc. It was also found that if any virtual machine (VM) is attacked, the physical memory of host machine too can be accessed. Further, the attacker can access the memory of all the VMs running on same host. Variants of attack: Variant 1: bounds check bypass Variant 2: branch target injection Variant 3: rogue data cache load As per the researchers, the Variant 1 and Variant 2 take place by mounting Spectre vulnerability, while Variant 3 by Meltdown. The Meltdown enables the…
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