strongswan — security advisory
The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.
- Products
- strongswan
- Affected versions
- Not specified
- Fixed versions
- 4.2.14-1.2
- CVEs
- CVE-2009-2185
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:16 UTC · Revision 1
Source evidence
The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.
osv:DEBIAN-CVE-2009-2185
strongswan
Fixed versions: 4.2.14-1.2
strongswan
Fixed versions: 4.2.14-1.2
strongswan
Fixed versions: 4.2.14-1.2
Complete source record
{
"id": "6389bb7d6769332f436c265ca33e687e8c927139711f1192f5e10f4b75054833",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2009-2185",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2009-2185",
"summary": "The ASN.1 parser (pluto/asn1.c, libstrongswan/asn1/asn1.c, libstrongswan/asn1/asn1_parser.c) in (a) strongSwan 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2; and (b) openSwan 2.6 before 2.6.22 and 2.4 before 2.4.15 allows remote attackers to cause a denial of service (pluto IKE daemon crash) via an X.509 certificate with (1) crafted Relative Distinguished Names (RDNs), (2) a crafted UTCTIME string, or (3) a crafted GENERALIZEDTIME string.",
"evidence": "osv:DEBIAN-CVE-2009-2185",
"products": [
{
"name": {
"value": "strongswan",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "strongswan",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "strongswan",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2009-2185",
"aliases": [
"DEBIAN-CVE-2009-2185"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.2"
}
]
}
],
"package": {
"name": "strongswan",
"purl": "pkg:deb/debian/strongswan?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-2185.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.2"
}
]
}
],
"package": {
"name": "strongswan",
"purl": "pkg:deb/debian/strongswan?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-2185.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.2"
}
]
}
],
"package": {
"name": "strongswan",
"purl": "pkg:deb/debian/strongswan?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-2185.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T17:47:39.324026941Z",
"provider": "osv",
"upstream": [
"CVE-2009-2185"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2009-2185"
]
},
"related_cves": [
{
"value": "CVE-2009-2185",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 418172,
"published_at": "2009-06-25T02:00:00.297+00:00"
}