sylprint.pl in claws mail tools (claws-mail-tools) allows local users to overwrite arbitrary files via a symlink attack on the sylprint.[USER].[PID] temporary file.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-6176
http://www.securityfocus.com/bid/26676
http://security.gentoo.org/glsa/glsa-200801-03.xml
http://secunia.com/advisories/28402