QtGui is the GUI module and platform plugins for the Qt5 framework.
A NULL pointer dereference has been found in QtGui.
A remote attacker could send a specially crafted GIF image, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All QtGui users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-qt/qtgui-4.8.5-r2"