CVE-2018-13054: Improper Link Resolution Before File Access

An issue was discovered in Cinnamon 1.9.2 through 3.8.6. The cinnamon-settings-users.py GUI runs as root and allows configuration of for example other users' icon files in onfacebrowsemenuitemactivated and onfacemenuitemactivated. These icon files are written to the respective user's $HOME/.face...