ubuntu-cve-2018-16152
Vulnerability from osv_ubuntu
Published
2018-09-24 12:00
Modified
2025-12-08 04:48
Summary
Details
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.
Severity
7.5 (High)
7.5 (High)
N/A (UNKNOWN)
References
{
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{
"binary_name": "strongswan-tnc-base",
"binary_version": "5.6.2-1ubuntu2.2"
},
{
"binary_name": "strongswan-tnc-client",
"binary_version": "5.6.2-1ubuntu2.2"
},
{
"binary_name": "strongswan-tnc-ifmap",
"binary_version": "5.6.2-1ubuntu2.2"
},
{
"binary_name": "strongswan-tnc-pdp",
"binary_version": "5.6.2-1ubuntu2.2"
},
{
"binary_name": "strongswan-tnc-server",
"binary_version": "5.6.2-1ubuntu2.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "strongswan",
"purl": "pkg:deb/ubuntu/strongswan@5.6.2-1ubuntu2.2?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.6.2-1ubuntu2.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.5.1-4ubuntu2",
"5.5.1-4ubuntu3",
"5.6.1-2ubuntu1",
"5.6.1-2ubuntu2",
"5.6.1-2ubuntu3",
"5.6.1-2ubuntu4",
"5.6.2-1ubuntu2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2018-16152",
"modified": "2025-12-08T04:48:04Z",
"published": "2018-09-24T12:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2018-16152"
},
{
"type": "REPORT",
"url": "https://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-(cve-2018-16151,-cve-2018-16152).html"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-3771-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-16152"
}
],
"related": [
"USN-3771-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2018-16152"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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