CVE-2002-1509
A patch for shadow-utils 20000902 causes the useradd command to create a mail spool files with read/write privileges of the new user’s group (mode 660), which allows other users in the same group to read or modify the new user’s incoming email.
Date published : 2004-09-01
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=75418
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:026