Unrated
ssmtp — security advisory
The log_event function in ssmtp 2.50.6 and earlier allows local users to overwrite arbitrary files via a symlink attack on the ssmtp.log temporary log file.
- Products
- ssmtp
- Affected versions
- 2.64-11, 2.64-12, 2.64-13, 2.65-1, 2.66-1
- Fixed versions
- Not specified
- CVEs
- CVE-2004-0423
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 14:25 UTC · Revision 1
Source evidence
The log_event function in ssmtp 2.50.6 and earlier allows local users to overwrite arbitrary files via a symlink attack on the ssmtp.log temporary log file.
osv:DEBIAN-CVE-2004-0423
ssmtp
Fixed versions: Not specified
ssmtp
Fixed versions: Not specified
ssmtp
Fixed versions: Not specified
Complete source record
{
"id": "2945d8a056972cbfac6b125ef14ae67d489e871d1532569acd0ea126717fe74e",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2004-0423",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2004-0423",
"summary": "The log_event function in ssmtp 2.50.6 and earlier allows local users to overwrite arbitrary files via a symlink attack on the ssmtp.log temporary log file.",
"evidence": "osv:DEBIAN-CVE-2004-0423",
"products": [
{
"name": {
"value": "ssmtp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.64-11",
"evidence": "/affected/0/versions"
},
{
"value": "2.64-12",
"evidence": "/affected/0/versions"
},
{
"value": "2.64-13",
"evidence": "/affected/0/versions"
},
{
"value": "2.65-1",
"evidence": "/affected/0/versions"
},
{
"value": "2.66-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "ssmtp",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.64-12",
"evidence": "/affected/1/versions"
},
{
"value": "2.64-13",
"evidence": "/affected/1/versions"
},
{
"value": "2.65-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.66-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "ssmtp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.64-12",
"evidence": "/affected/2/versions"
},
{
"value": "2.64-13",
"evidence": "/affected/2/versions"
},
{
"value": "2.65-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.66-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2004-0423",
"aliases": [
"DEBIAN-CVE-2004-0423"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ssmtp",
"purl": "pkg:deb/debian/ssmtp?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"2.64-11",
"2.64-12",
"2.64-13",
"2.65-1",
"2.66-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0423.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ssmtp",
"purl": "pkg:deb/debian/ssmtp?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.64-12",
"2.64-13",
"2.65-1",
"2.66-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0423.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ssmtp",
"purl": "pkg:deb/debian/ssmtp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.64-12",
"2.64-13",
"2.65-1",
"2.66-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-0423.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-21T15:47:33.086325858Z",
"provider": "osv",
"upstream": [
"CVE-2004-0423"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2004-0423"
]
},
"related_cves": [
{
"value": "CVE-2004-0423",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 393985,
"published_at": "2004-07-07T04:00:00+00:00"
}