krb5 — security advisory
The (1) ftpd and (2) ksu programs in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which might allow local users to gain privileges by causing setuid to fail to drop privileges. NOTE: as of 20060808, it is not known whether an exploitable attack scenario exists for these issues.
- Products
- krb5
- Affected versions
- Not specified
- Fixed versions
- 1.4.3-9
- CVEs
- CVE-2006-3084
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:11 UTC · Revision 1
Source evidence
The (1) ftpd and (2) ksu programs in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which might allow local users to gain privileges by causing setuid to fail to drop privileges. NOTE: as of 20060808, it is not known whether an exploitable attack scenario exists for these issues.
osv:DEBIAN-CVE-2006-3084
krb5
Fixed versions: 1.4.3-9
krb5
Fixed versions: 1.4.3-9
krb5
Fixed versions: 1.4.3-9
Complete source record
{
"id": "4a5810ddb1b24f705963168e07329296080894fe6968161f6400c569da195fd3",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2006-3084",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2006-3084",
"summary": "The (1) ftpd and (2) ksu programs in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which might allow local users to gain privileges by causing setuid to fail to drop privileges. NOTE: as of 20060808, it is not known whether an exploitable attack scenario exists for these issues.",
"evidence": "osv:DEBIAN-CVE-2006-3084",
"products": [
{
"name": {
"value": "krb5",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.3-9",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "krb5",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.3-9",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "krb5",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.4.3-9",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2006-3084",
"aliases": [
"DEBIAN-CVE-2006-3084"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3-9"
}
]
}
],
"package": {
"name": "krb5",
"purl": "pkg:deb/debian/krb5?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3084.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3-9"
}
]
}
],
"package": {
"name": "krb5",
"purl": "pkg:deb/debian/krb5?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3084.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.4.3-9"
}
]
}
],
"package": {
"name": "krb5",
"purl": "pkg:deb/debian/krb5?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3084.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-22T23:47:22.114933102Z",
"provider": "osv",
"upstream": [
"CVE-2006-3084"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2006-3084"
]
},
"related_cves": [
{
"value": "CVE-2006-3084",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410338,
"published_at": "2006-08-09T10:04:00+00:00"
}