HighFix available
strongswan — security advisory
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
- Products
- strongswan
- Affected versions
- Not specified
- Fixed versions
- 5.9.1-r2, 5.9.1-r3, 5.9.1-r4, 5.9.5-r2, 5.9.8-r0
- CVEs
- CVE-2022-40617
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 14:17 UTC · Revision 1
Source evidence
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.
osv:ALPINE-CVE-2022-40617
strongswan
Fixed versions: 5.9.1-r2
strongswan
Fixed versions: 5.9.1-r3
strongswan
Fixed versions: 5.9.1-r4
strongswan
Fixed versions: 5.9.5-r2
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
strongswan
Fixed versions: 5.9.8-r0
Complete source record
{
"id": "c4859358a0c680935f9fe38337bf6affd1b5f08ed161dbf4f5d5b5f448e9ddab",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2022-40617",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2022-40617",
"summary": "strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that contains a CRL/OCSP URL that points to a server (under the attacker's control) that doesn't properly respond but (for example) just does nothing after the initial TCP handshake, or sends an excessive amount of application data.",
"evidence": "osv:ALPINE-CVE-2022-40617",
"products": [
{
"name": {
"value": "strongswan",
"evidence": "/affected/0/package/name"
},
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{
"value": "5.9.1-r2",
"evidence": "/affected/0/ranges"
}
],
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{
"name": {
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},
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{
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},
{
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{
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{
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{
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{
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{
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{
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"evidence": "/affected/11/ranges"
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],
"affected_versions": []
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],
"severity": "high",
"structured": {
"id": "ALPINE-CVE-2022-40617",
"aliases": [
"ALPINE-CVE-2022-40617"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"events": [
{
"introduced": "0"
},
{
"fixed": "5.9.1-r2"
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],
"package": {
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"purl": "pkg:apk/alpine/strongswan?arch=source",
"ecosystem": "Alpine:v3.13"
},
"database_specific": {
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},
"ecosystem_specific": {}
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{
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{
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"purl": "pkg:apk/alpine/strongswan?arch=source",
"ecosystem": "Alpine:v3.14"
},
"database_specific": {
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},
"ecosystem_specific": {}
},
{
"ranges": [
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"events": [
{
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{
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}
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],
"package": {
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"ecosystem": "Alpine:v3.15"
},
"database_specific": {
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},
{
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{
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},
{
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}
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],
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"ecosystem": "Alpine:v3.16"
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"database_specific": {
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{
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},
"database_specific": {
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"ecosystem": "Alpine:v3.21"
},
"database_specific": {
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},
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],
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"ecosystem": "Alpine:v3.24"
},
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],
"modified": "2026-10-15T07:17:54.249838144Z",
"provider": "osv",
"upstream": [
"CVE-2022-40617"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2022-40617"
]
},
"related_cves": [
{
"value": "CVE-2022-40617",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 321959,
"published_at": "2022-10-31T06:15:09.887+00:00"
}