HighFix available
software-properties — security advisory
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.
- Products
- software-properties
- Affected versions
- Not specified
- Fixed versions
- 0.92.25debian1
- CVEs
- CVE-2012-0955
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:55 UTC · Revision 1
Source evidence
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.
osv:DEBIAN-CVE-2012-0955
software-properties
Fixed versions: 0.92.25debian1
Complete source record
{
"id": "25d34f43c0bacf01245d7dfa21ec0caf6187cc95db8f8ff4e8788f51805f025e",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2012-0955",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2012-0955",
"summary": "software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.",
"evidence": "osv:DEBIAN-CVE-2012-0955",
"products": [
{
"name": {
"value": "software-properties",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0.92.25debian1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2012-0955",
"aliases": [
"DEBIAN-CVE-2012-0955"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.92.25debian1"
}
]
}
],
"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-2012-0955.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:02:09.701966953Z",
"provider": "osv",
"upstream": [
"CVE-2012-0955"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2012-0955"
]
},
"related_cves": [
{
"value": "CVE-2012-0955",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 419463,
"published_at": "2020-12-02T01:15:11.797+00:00"
}