GDK-PixBuf is an image loading library for GTK+.
It was discovered that the GDK-PixBuf library did not properly handle certain GIF images.
A remote attacker could entice a user to open a specially crafted GIF image in an application linked against GDK-PixBuf library, possibly resulting in a Denial of Service condition.
There is no known workaround at this time.
All GDK-PixBuf library users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/gdk-pixbuf-2.42.2"