Untrusted search path vulnerability in Catfish through 0.4.0.3, when a Fedora package such as 0.4.0.2-2 is not used, allows local users to gain privileges via a Trojan horse catfish.pyc in the current working directory.
https://bugzilla.redhat.com/show_bug.cgi?id=1069396
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=739958