YaST Online Update (YOU) in SuSE 8.2 and 9.0 allows local users to overwrite arbitrary files via a symlink attack on you-$USER/cookies.
https://exchange.xforce.ibmcloud.com/vulnerabilities/15731
http://www.securityfocus.com/bid/10047
http://securitytracker.com/id?1009668
http://secunia.com/advisories/11300
http://marc.info/?l=bugtraq&m=108118395519164&w=2
http://archives.neohapsis.com/archives/bugtraq/2004-04/0058.html