A flaw was found in Pango since versions 1.40.8 up to newer. Typing certain invalid Emoji sequences into a GTK+ application can trigger a Reachable Assertion resulting in an application crash.
This issue did not affect the versions of pango as shipped with Red Hat Enterprise Linux 5, 6, and 7 as they did not include support for emojis.
Created pango tracking bugs for this issue:
Affects: fedora-all [bug 1619831]
Name: Jeffery M
Upstream: GNOME Project