CVE-2018-5178

A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur. This vulnerability affects Thunderbird ESR < 52.8, Thunderbird < 52.8, and Firefox ESR < 52.8. Date published : 2018-06-11 http://www.securityfocus.com/bid/104138

https://bugzilla.mozilla.org/show_bug.cgi?id=1443891