Provide references for CVE-2020-15668.
Where can I find more information about CVE-2020-15668?
References are available at: https://www.mozilla.org/security/advisories/mfsa2020-39/, https://www.mozilla.org/security/advisories/mfsa2020-36/, https://bugzilla.mozilla.org/show_bug.cgi?id=1651520.