UnratedFix available
bsd-mailx — security advisory
The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.
- Products
- bsd-mailx
- Affected versions
- Not specified
- Fixed versions
- 8.1.2-0.20071201cvs-1
- CVEs
- CVE-2004-2771
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 14:23 UTC · Revision 1
Source evidence
The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.
osv:DEBIAN-CVE-2004-2771
bsd-mailx
Fixed versions: 8.1.2-0.20071201cvs-1
bsd-mailx
Fixed versions: 8.1.2-0.20071201cvs-1
bsd-mailx
Fixed versions: 8.1.2-0.20071201cvs-1
Complete source record
{
"id": "33e21ce38c559b67bfe19428f8f6d313ab942f1782f5bc3b301db65fdc87e9e2",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2004-2771",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2004-2771",
"summary": "The expand function in fio.c in Heirloom mailx 12.5 and earlier and BSD mailx 8.1.2 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in an email address.",
"evidence": "osv:DEBIAN-CVE-2004-2771",
"products": [
{
"name": {
"value": "bsd-mailx",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.2-0.20071201cvs-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bsd-mailx",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.2-0.20071201cvs-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bsd-mailx",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "8.1.2-0.20071201cvs-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2004-2771",
"aliases": [
"DEBIAN-CVE-2004-2771"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.1.2-0.20071201cvs-1"
}
]
}
],
"package": {
"name": "bsd-mailx",
"purl": "pkg:deb/debian/bsd-mailx?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-2771.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.1.2-0.20071201cvs-1"
}
]
}
],
"package": {
"name": "bsd-mailx",
"purl": "pkg:deb/debian/bsd-mailx?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-2771.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "8.1.2-0.20071201cvs-1"
}
]
}
],
"package": {
"name": "bsd-mailx",
"purl": "pkg:deb/debian/bsd-mailx?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2004-2771.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-21T15:47:27.394001401Z",
"provider": "osv",
"upstream": [
"CVE-2004-2771"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2004-2771"
]
},
"related_cves": [
{
"value": "CVE-2004-2771",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 393893,
"published_at": "2014-12-24T18:59:00.103+00:00"
}