Security update for webkit2gtk3

Open Source Vulnerabilities SUSE-SU-2019:0511-1

This update for webkit2gtk3 to version 2.22.6 fixes the following issues: Security issues fixed: - CVE-2019-6212: Fixed multiple memory corruption vulnerabilities which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6215: Fixed a type confusion vulnerability which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6216: Fixed multiple memory corruption vulnerabilities which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6217: Fixed multiple memory corruption vulnerabilities which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6226: Fixed multiple memory corruption vulnerabilities which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6227: Fixed a memory corruption vulnerability which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6229: Fixed a logic issue by improving validation which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6233: Fixed a memory corruption vulnerability which could allow arbitrary code execution during the processing of special crafted web-content. - CVE-2019-6234: Fixed a memory corruption vulnerability which could allow arbitrary code execution during the processing of special crafted web-content. Other issues addressed: - Update to version 2.22.6 (bsc#1124937). - Kinetic scrolling slow down smoothly when reaching the ends of pages, instead of abruptly, to better match the GTK+ behaviour. - Fixed Web inspector magnifier under Wayland. - Fixed garbled rendering of some websites (e.g. YouTube) while scrolling under X11. - Fixed several crashes, race conditions, and rendering issues.