HighFix available
strongswan — security advisory
In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568.
- Products
- strongswan
- Affected versions
- Not specified
- Fixed versions
- 5.5.3-r2, 5.6.3-r1, 5.6.3-r2, 5.7.0-r0
- CVEs
- CVE-2018-16152
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 21:58 UTC · Revision 1
Source evidence
In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation when only an RSA signature is used for IKEv2 authentication. This is a variant of CVE-2006-4790 and CVE-2014-1568.
osv:ALPINE-CVE-2018-16152
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.7.0-r0
strongswan
Fixed versions: 5.5.3-r2
strongswan
Fixed versions: 5.5.3-r2
strongswan
Fixed versions: 5.6.3-r1
strongswan
Fixed versions: 5.6.3-r2
strongswan
Fixed versions: 5.7.0-r0
Complete source record
{
"id": "b8e794614471efdaae70607deae498db22a28875e9bc835e590541f5ca1eaec6",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2018-16152",
"method": "structured",
"payload": {
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"title": "ALPINE-CVE-2018-16152",
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],
"modified": "2026-10-23T17:17:55.224628734Z",
"provider": "osv",
"upstream": [
"CVE-2018-16152"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2018-16152"
]
},
"related_cves": [
{
"value": "CVE-2018-16152",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415070,
"published_at": "2018-09-26T21:29:01.197+00:00"
}