A security issue has been found in Firefox before 61.0 and Thunderbird before 60.0. In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work, PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer.
A security issue has been found in Firefox before 61.0 and Thunderbird before 60.0. In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work, PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer.
https://www.mozilla.org/en-US/security/advisories/mfsa2018-15/#CVE-2018-12367 https://bugzilla.mozilla.org/show_bug.cgi?id=1462891
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