UnratedFix available
strongswan — security advisory
charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.
- Products
- strongswan
- Affected versions
- Not specified
- Fixed versions
- 4.2.14-1.1
- CVEs
- CVE-2009-1958
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:47 UTC · Revision 1
Source evidence
charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.
osv:DEBIAN-CVE-2009-1958
strongswan
Fixed versions: 4.2.14-1.1
strongswan
Fixed versions: 4.2.14-1.1
strongswan
Fixed versions: 4.2.14-1.1
Complete source record
{
"id": "2e03ee0aa71ea9be448da28af86125c9d39e415feae6b6d2a564a7552a06cf85",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2009-1958",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2009-1958",
"summary": "charon/sa/tasks/child_create.c in the charon daemon in strongSWAN before 4.3.1 switches the NULL checks for TSi and TSr payloads, which allows remote attackers to cause a denial of service via an IKE_AUTH request without a (1) TSi or (2) TSr traffic selector.",
"evidence": "osv:DEBIAN-CVE-2009-1958",
"products": [
{
"name": {
"value": "strongswan",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "strongswan",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "strongswan",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "4.2.14-1.1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2009-1958",
"aliases": [
"DEBIAN-CVE-2009-1958"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.1"
}
]
}
],
"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-2009-1958.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.1"
}
]
}
],
"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-2009-1958.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "4.2.14-1.1"
}
]
}
],
"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-2009-1958.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-23T17:47:51.380854428Z",
"provider": "osv",
"upstream": [
"CVE-2009-1958"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2009-1958"
]
},
"related_cves": [
{
"value": "CVE-2009-1958",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 419315,
"published_at": "2009-06-08T01:00:00.75+00:00"
}