Hashed codes of JavaScript objects are shared between pages. This allows for pointer leaks because an object’s address can be discovered through hash codes, and also allows for data leakage of an object’s content using these hash codes. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.
rhn.redhat.com/errata/RHSA-2017-0190.html
rhn.redhat.com/errata/RHSA-2017-0238.html
www.securityfocus.com/bid/95769
www.securitytracker.com/id/1037693
bugzilla.mozilla.org/show_bug.cgi?id=1312001
bugzilla.mozilla.org/show_bug.cgi?id=1330769
security.gentoo.org/glsa/201702-13
security.gentoo.org/glsa/201702-22
www.debian.org/security/2017/dsa-3771
www.debian.org/security/2017/dsa-3832
www.mozilla.org/security/advisories/mfsa2017-01/
www.mozilla.org/security/advisories/mfsa2017-02/
www.mozilla.org/security/advisories/mfsa2017-03/