Event handlers on “marquee” elements were executed despite a strict Content Security Policy (CSP) that disallowed inline JavaScript. This vulnerability affects Firefox < 50.1, Firefox ESR < 45.6, and Thunderbird < 45.6.
rhn.redhat.com/errata/RHSA-2016-2946.html
rhn.redhat.com/errata/RHSA-2016-2973.html
www.securityfocus.com/bid/94885
www.securitytracker.com/id/1037461
bugzilla.mozilla.org/show_bug.cgi?id=1312272
security.gentoo.org/glsa/201701-15
www.debian.org/security/2017/dsa-3757
www.mozilla.org/security/advisories/mfsa2016-94/
www.mozilla.org/security/advisories/mfsa2016-95/
www.mozilla.org/security/advisories/mfsa2016-96/