GNU Gnump3d before 2.9.8 allows local users to modify or delete arbitrary files via a symlink attack on the index.lok temporary file.
http://www.vupen.com/english/advisories/2005/2489
http://www.securityfocus.com/bid/15497
http://www.novell.com/linux/security/advisories/2005_28_sr.html
http://www.gnu.org/software/gnump3d/attacks.html#temporary-files
http://www.gnu.org/software/gnump3d/ChangeLog
http://www.gentoo.org/security/en/glsa/glsa-200511-16.xml
http://www.debian.org/security/2005/dsa-901
http://secunia.com/advisories/17656