Total vulnerabilities in the database
Postfix through 3.8.5 allows SMTP smuggling unless configured with smtpd_data_restrictions=reject_unauth_pipelining and smtpd_discard_ehlo_keywords=chunking (or certain other options that exist in recent versions). Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Postfix supports <LF>.<CR><LF> but some other popular e-mail servers do not. To prevent attack variants (by always disallowing <LF> without <CR>), a different solution is required, such as the smtpd_forbid_bare_newline=yes option with a Postfix minimum version of 3.5.23, 3.6.13, 3.7.9, 3.8.4, or 3.9.
| Software | From | Fixed in |
|---|---|---|
| postfix / postfix | 3.8.0 | 3.8.4 |
| postfix / postfix | 3.7.0 | 3.7.9 |
| postfix / postfix | 3.6.0 | 3.6.13 |
| postfix / postfix | - | 3.5.23 |
| fedoraproject / fedora | 38 | 38.x |
| fedoraproject / fedora | 39 | 39.x |
| redhat / enterprise_linux | 8.0 | 8.0.x |
| redhat / enterprise_linux | 9.0 | 9.0.x |