A use-after-free vulnerability when holding a selection during scroll events. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.Referenceshttps://access.redhat.com/errata/RHSA-2017:1106https://www.mozilla.org/security/advisories/mfsa2017-12/https://www.mozilla.org/security/advisories/mfsa2017-11/https://www.mozilla.org/security/advisories/mfsa2017-10/http://www.securityfocus.com/bid/97940https://www.debian.org/security/2017/dsa-3831https://www.mozilla.org/security/advisories/mfsa2017-13/https://bugzilla.mozilla.org/show_bug.cgi?id=1343795http://www.securitytracker.com/id/1038320https://access.redhat.com/errata/RHSA-2017:1104https://access.redhat.com/errata/RHSA-2017:1201
