The db interface in libc in FreeBSD 6.3, 6.4, 7.0, 7.1, and 7.2-PRERELEASE does not properly initialize memory for Berkeley DB 1.85 database structures, which allows local users to obtain sensitive information by reading a database file.
http://www.securitytracker.com/id?1022113
http://security.freebsd.org/advisories/FreeBSD-SA-09:07.libc.asc
http://secunia.com/advisories/34810
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10756