UnratedFix available
software-properties — security advisory
ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.
- Products
- software-properties
- Affected versions
- Not specified
- Fixed versions
- 0.76.7debian2+nmu2
- CVEs
- CVE-2011-4407
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:43 UTC · Revision 1
Source evidence
ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.
osv:DEBIAN-CVE-2011-4407
software-properties
Fixed versions: 0.76.7debian2+nmu2
Complete source record
{
"id": "877bbea807d50bc063dbc839aefe430fd09c844a4800c1119fe495881ab4f1e7",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2011-4407",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2011-4407",
"summary": "ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.",
"evidence": "osv:DEBIAN-CVE-2011-4407",
"products": [
{
"name": {
"value": "software-properties",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.76.7debian2+nmu2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2011-4407",
"aliases": [
"DEBIAN-CVE-2011-4407"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.76.7debian2+nmu2"
}
]
}
],
"package": {
"name": "software-properties",
"purl": "pkg:deb/debian/software-properties?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-4407.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:28.855985046Z",
"provider": "osv",
"upstream": [
"CVE-2011-4407"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2011-4407"
]
},
"related_cves": [
{
"value": "CVE-2011-4407",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 417153,
"published_at": "2014-05-14T00:55:04.9+00:00"
}