CVE-2018-18493

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64. Date published : 2019-02-28 http://www.securityfocus.com/bid/106168

https://bugzilla.mozilla.org/show_bug.cgi?id=1504452