Gaim 0.57 stores sensitive information in world-readable and group-writable files in the /tmp directory, which allows local users to access MSN web email accounts of other users who run Gaim by reading authentication information from the files.
http://www.securityfocus.com/bid/4730
http://www.iss.net/security_center/static/9061.php
http://marc.info/?l=bugtraq&m=102130733815285&w=2
http://gaim.sourceforge.net/ChangeLog
http://archives.neohapsis.com/archives/vuln-dev/2002-q2/0584.html