The (1) extract_keys_from_pdf and (2) fill_pdf functions in pdf_ext.py in logilab-commons before 0.61.0 allows local users to overwrite arbitrary files and possibly have other unspecified impact via a symlink attack on /tmp/toto.fdf.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737051
http://www.logilab.org/ticket/207561
http://secunia.com/advisories/57209
http://lists.opensuse.org/opensuse-updates/2014-02/msg00085.html
http://comments.gmane.org/gmane.comp.security.oss.general/11986