webkit2gtk: arbitrary code execution

WebKitGTK+ allows remote attackers to execute arbitrary code or cause a denial of service memory corruption via a crafted web site, a different vulnerability than CVE-2016-1854, CVE-2016-1855, and CVE-2016-1856. Credit to Jeonghoon Shin at A.D.D and Liang Chen, Zhen Feng, wushi of KeenLab, Tencen...