Confused-deputy side-channel attacks based on Tagged TLBs can break KASLR even in face of ideal KPTI or state-of-the-art KASLR mitigations.
http://www.tweepy.net/twiuser/vu5ec
As a concrete demonstration, we present TagBleed, a new
side-channel attack that abuses tagged TLBs and residual
translation information to break KASLR even in the face of
state-of-the-art mitigations. TagBleed is practical and shows
that implementing secure address space isolation requires
deep partitioning of microarchitectural resources and a more
generous performance budget than previously assumed.
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Анализ криптографических сетевых...
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