IBM Spectrum Protect (formerly Tivoli Storage Manager) 5.5 through 6.3 before 6.3.2.6, 6.4 before 6.4.3.3, and 7.1 before 7.1.6 allows local users to obtain sensitive retrieved data from arbitrary accounts in opportunistic circumstances by leveraging previous use of a symlink during archive and retrieve actions.
http://www.securitytracker.com/id/1036220
http://www.securityfocus.com/bid/91534