postfix — security advisory
Postfix 1.1.11 and earlier allows remote attackers to use Postfix to conduct "bounce scans" or DDos attacks of other hosts via an email address to the local host containing the target IP address and service name followed by a "!" string, which causes Postfix to attempt to use SMTP to communicate with the target on the associated port.
- Products
- postfix
- Affected versions
- Not specified
- Fixed versions
- 1.1.12
- CVEs
- CVE-2003-0468
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:09 UTC · Revision 1
Source evidence
Postfix 1.1.11 and earlier allows remote attackers to use Postfix to conduct "bounce scans" or DDos attacks of other hosts via an email address to the local host containing the target IP address and service name followed by a "!" string, which causes Postfix to attempt to use SMTP to communicate with the target on the associated port.
osv:DEBIAN-CVE-2003-0468
postfix
Fixed versions: 1.1.12
postfix
Fixed versions: 1.1.12
postfix
Fixed versions: 1.1.12
Complete source record
{
"id": "146f23794352adf7f33714da01432e863fd5e89fb7712e613b4c48539e0da1f5",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2003-0468",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2003-0468",
"summary": "Postfix 1.1.11 and earlier allows remote attackers to use Postfix to conduct \"bounce scans\" or DDos attacks of other hosts via an email address to the local host containing the target IP address and service name followed by a \"!\" string, which causes Postfix to attempt to use SMTP to communicate with the target on the associated port.",
"evidence": "osv:DEBIAN-CVE-2003-0468",
"products": [
{
"name": {
"value": "postfix",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.1.12",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "postfix",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.1.12",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "postfix",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.1.12",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2003-0468",
"aliases": [
"DEBIAN-CVE-2003-0468"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.12"
}
]
}
],
"package": {
"name": "postfix",
"purl": "pkg:deb/debian/postfix?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0468.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.12"
}
]
}
],
"package": {
"name": "postfix",
"purl": "pkg:deb/debian/postfix?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0468.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.1.12"
}
]
}
],
"package": {
"name": "postfix",
"purl": "pkg:deb/debian/postfix?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2003-0468.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-22T23:47:19.448943483Z",
"provider": "osv",
"upstream": [
"CVE-2003-0468"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2003-0468"
]
},
"related_cves": [
{
"value": "CVE-2003-0468",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410204,
"published_at": "2003-08-27T04:00:00+00:00"
}