UnratedFix available
courier — security advisory
Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.
- Products
- courier
- Affected versions
- Not specified
- Fixed versions
- 0.45.6-1
- CVEs
- CVE-2004-0777
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 14:24 UTC · Revision 1
Source evidence
Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.
osv:DEBIAN-CVE-2004-0777
courier
Fixed versions: 0.45.6-1
courier
Fixed versions: 0.45.6-1
courier
Fixed versions: 0.45.6-1
Complete source record
{
"id": "30f2a6d1bf971a85ba5be0384a3a28954bd1f41dca76b8f859116ee6bfa09b70",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2004-0777",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2004-0777",
"summary": "Format string vulnerability in the auth_debug function in Courier-IMAP 1.6.0 through 2.2.1 and 3.x through 3.0.3, when login debugging (DEBUG_LOGIN) is enabled, allows remote attackers to execute arbitrary code.",
"evidence": "osv:DEBIAN-CVE-2004-0777",
"products": [
{
"name": {
"value": "courier",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.45.6-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "courier",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.45.6-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "courier",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.45.6-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2004-0777",
"aliases": [
"DEBIAN-CVE-2004-0777"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.45.6-1"
}
]
}
],
"package": {
"name": "courier",
"purl": "pkg:deb/debian/courier?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0777.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.45.6-1"
}
]
}
],
"package": {
"name": "courier",
"purl": "pkg:deb/debian/courier?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0777.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.45.6-1"
}
]
}
],
"package": {
"name": "courier",
"purl": "pkg:deb/debian/courier?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0777.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-21T15:47:30.049490255Z",
"provider": "osv",
"upstream": [
"CVE-2004-0777"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2004-0777"
]
},
"related_cves": [
{
"value": "CVE-2004-0777",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 393934,
"published_at": "2004-10-20T04:00:00+00:00"
}