Libidn2 NEWS -- History of user-visible changes. -*- outline -*- Copyright (C) 2011-2016 Simon Josefsson See the end for copying conditions. * Version 0.11 (unreleased) [alpha] ** Fix stack underflow in 'idn2' command line tool. Reported by Hanno Böck <hanno@hboeck.de>.
There aren't much details if it is just a programming bug or it is a security bug. But since it isn't a stable package and it is already bumped/cleaned, for me it is fine as-is.