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Cybersecurity & Cryptography
Q82 / 100
What is Spectre/Meltdown and what class of vulnerability are they?
Correct! Well done.
Incorrect.
The correct answer is B) Microarchitectural side-channel attacks exploiting CPU speculative execution to read arbitrary memory across security boundaries
B
Correct Answer
Microarchitectural side-channel attacks exploiting CPU speculative execution to read arbitrary memory across security boundaries
Explanation
Meltdown: exploits out-of-order execution to read kernel memory from user space. Spectre: exploits branch prediction to leak data from other processes. Patches (KPTI, retpoline) have significant performance overhead.
Progress
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