The play_wave_from_socket function in audio/auserver.c in Flite 1.4 allows local users to modify arbitrary files via a symlink attack on /tmp/awb.wav. NOTE: some of these details are obtained from third party information.
https://bugzilla.redhat.com/show_bug.cgi?id=1048678
http://www.securityfocus.com/bid/64791
http://www.mandriva.com/security/advisories?name=MDVSA-2014:032
http://seclists.org/oss-sec/2014/q1/59
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127776.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/127748.html