The POP3 server in Netscape Messaging Server 4.15p1 generates different error messages for incorrect user names versus incorrect passwords, which allows remote attackers to determine valid users on the system and harvest email addresses for spam abuse.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Messaging_server | Netscape | 4.15 (including) | 4.15 (including) |
| Messaging_server | Netscape | 4.15-patch1 (including) | 4.15-patch1 (including) |
| Messaging_server | Netscape | 4.15-patch2 (including) | 4.15-patch2 (including) |