Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information to an attacker with local user access via a side-channel attack on the directional branch predictor, as demonstrated by a pattern history table (PHT), aka BranchScope.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Link | Tags |
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http://www.cs.ucr.edu/~nael/pubs/asplos18.pdf | third party advisory exploit |
https://arstechnica.com/gadgets/2018/03/its-not-just-spectre-researchers-reveal-more-branch-prediction-attacks/ | third party advisory |