{"id":"DEBIAN-CVE-2005-0337","details":"Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote attackers to bypass e-mail restrictions and perform mail relaying by sending mail to an IPv6 hostname.","modified":"2026-09-08T06:47:25.149561533Z","published":"2005-05-02T04:00:00Z","upstream":["CVE-2005-0337"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2005-0337"}],"affected":[{"package":{"name":"postfix","ecosystem":"Debian:12","purl":"pkg:deb/debian/postfix?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-0337.json"}},{"package":{"name":"postfix","ecosystem":"Debian:13","purl":"pkg:deb/debian/postfix?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-0337.json"}},{"package":{"name":"postfix","ecosystem":"Debian:14","purl":"pkg:deb/debian/postfix?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4-5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2005-0337.json"}}],"schema_version":"1.9.0"}