lib/Locale/Po4a/Po.pm in po4a before 0.32 allows local users to overwrite arbitrary files via a symlink attack on the gettextization.failed.po temporary file.
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=253541
http://www.securityfocus.com/bid/25402
http://security.gentoo.org/glsa/glsa-200709-04.xml
http://secunia.com/advisories/26810
http://secunia.com/advisories/26492