MFSA2019-27 Firefox: Security vulnerabilities fixed in Firefox ESR 60.9 (CVE-2019-11743)
Description
Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the unload event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
Solution(s)
- mozilla-firefox-esr-upgrade-60_9
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