Medium
duo-unix — security advisory
bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an integer overflow via properly constructed bson input.
- Products
- duo-unix
- Affected versions
- 1.11.3-1, 1.11.3-1.1, 1.11.3-1.1~exp1, 1.11.3-1.2
- Fixed versions
- Not specified
- CVEs
- CVE-2020-12135
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 13:00 UTC · Revision 1
Source evidence
bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an integer overflow via properly constructed bson input.
osv:DEBIAN-CVE-2020-12135
duo-unix
Fixed versions: Not specified
duo-unix
Fixed versions: Not specified
Complete source record
{
"id": "616cee832f71e68d067c5a6289ac6606edb19e3cf80d1bbf0ebd76e9c828acbf",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-12135",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2020-12135",
"summary": "bson before 0.8 incorrectly uses int rather than size_t for many variables, parameters, and return values. In particular, the bson_ensure_space() parameter bytesNeeded could have an integer overflow via properly constructed bson input.",
"evidence": "osv:DEBIAN-CVE-2020-12135",
"products": [
{
"name": {
"value": "duo-unix",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.11.3-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.11.3-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.11.3-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "1.11.3-1.2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "duo-unix",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.11.3-1.2",
"evidence": "/affected/1/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2020-12135",
"aliases": [
"DEBIAN-CVE-2020-12135"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "duo-unix",
"purl": "pkg:deb/debian/duo-unix?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.11.3-1",
"1.11.3-1.1",
"1.11.3-1.1~exp1",
"1.11.3-1.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12135.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "duo-unix",
"purl": "pkg:deb/debian/duo-unix?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.11.3-1.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-12135.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-26T12:01:26.049656271Z",
"provider": "osv",
"upstream": [
"CVE-2020-12135"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2020-12135"
]
},
"related_cves": [
{
"value": "CVE-2020-12135",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 451662,
"published_at": "2020-04-24T01:15:11.43+00:00"
}