ppp — security advisory
The winbind plugin in pppd for ppp 2.4.4 and earlier does not check the return code from the setuid function call, which might allow local users to gain privileges by causing setuid to fail, such as exceeding PAM limits for the maximum number of user processes, which prevents the winbind NTLM authentication helper from dropping privileges.
- Products
- ppp
- Affected versions
- Not specified
- Fixed versions
- 2.4.4rel-1
- CVEs
- CVE-2006-2194
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 20:19 UTC · Revision 1
Source evidence
The winbind plugin in pppd for ppp 2.4.4 and earlier does not check the return code from the setuid function call, which might allow local users to gain privileges by causing setuid to fail, such as exceeding PAM limits for the maximum number of user processes, which prevents the winbind NTLM authentication helper from dropping privileges.
osv:DEBIAN-CVE-2006-2194
ppp
Fixed versions: 2.4.4rel-1
ppp
Fixed versions: 2.4.4rel-1
ppp
Fixed versions: 2.4.4rel-1
Complete source record
{
"id": "603b63557dbea5000c16248a33c642719e3e24a5c3fe56e6e1e53699e1105356",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2006-2194",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2006-2194",
"summary": "The winbind plugin in pppd for ppp 2.4.4 and earlier does not check the return code from the setuid function call, which might allow local users to gain privileges by causing setuid to fail, such as exceeding PAM limits for the maximum number of user processes, which prevents the winbind NTLM authentication helper from dropping privileges.",
"evidence": "osv:DEBIAN-CVE-2006-2194",
"products": [
{
"name": {
"value": "ppp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.4rel-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ppp",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.4rel-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ppp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.4.4rel-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2006-2194",
"aliases": [
"DEBIAN-CVE-2006-2194"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4rel-1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-2194.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4rel-1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-2194.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4rel-1"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-2194.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-22T23:47:33.139050349Z",
"provider": "osv",
"upstream": [
"CVE-2006-2194"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2006-2194"
]
},
"related_cves": [
{
"value": "CVE-2006-2194",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 410850,
"published_at": "2006-07-05T18:05:00+00:00"
}