CVE-2009-3941 (GCVE-0-2009-3941)
Vulnerability from cvelistv5 – Published: 2009-11-16 19:00 – Updated: 2024-09-17 00:51
VLAI
EPSS
VEX
Summary
Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://mpop.sourceforge.net/news.html | x_refsource_CONFIRM |
| http://secunia.com/advisories/37312 | third-party-advisoryx_refsource_SECUNIA |
| http://www.vupen.com/english/advisories/2009/3225 | vdb-entryx_refsource_VUPEN |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-07T06:45:50.505Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://mpop.sourceforge.net/news.html"
},
{
"name": "37312",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA",
"x_transferred"
],
"url": "http://secunia.com/advisories/37312"
},
{
"name": "ADV-2009-3225",
"tags": [
"vdb-entry",
"x_refsource_VUPEN",
"x_transferred"
],
"url": "http://www.vupen.com/english/advisories/2009/3225"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a \u0027\\0\u0027 character in a domain name in the (1) subject\u0027s Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2009-11-16T19:00:00.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://mpop.sourceforge.net/news.html"
},
{
"name": "37312",
"tags": [
"third-party-advisory",
"x_refsource_SECUNIA"
],
"url": "http://secunia.com/advisories/37312"
},
{
"name": "ADV-2009-3225",
"tags": [
"vdb-entry",
"x_refsource_VUPEN"
],
"url": "http://www.vupen.com/english/advisories/2009/3225"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2009-3941",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a \u0027\\0\u0027 character in a domain name in the (1) subject\u0027s Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "http://mpop.sourceforge.net/news.html",
"refsource": "CONFIRM",
"url": "http://mpop.sourceforge.net/news.html"
},
{
"name": "37312",
"refsource": "SECUNIA",
"url": "http://secunia.com/advisories/37312"
},
{
"name": "ADV-2009-3225",
"refsource": "VUPEN",
"url": "http://www.vupen.com/english/advisories/2009/3225"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2009-3941",
"datePublished": "2009-11-16T19:00:00.000Z",
"dateReserved": "2009-11-16T00:00:00.000Z",
"dateUpdated": "2024-09-17T00:51:11.160Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2009-3941",
"date": "2026-10-08",
"epss": "0.00928",
"percentile": "0.59353"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2A334487-BFC7-4BD3-A41C-B4A7A03FD688",
"versionEndIncluding": "1.0.18",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.1.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F3D33CFC-B3AD-447D-9ED7-B9EB56F37963",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.1.1:*:*:*:*:*:*:*",
"matchCriteriaId": "C1101564-6C93-4116-8286-423ECF1CE1F9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.1.2:*:*:*:*:*:*:*",
"matchCriteriaId": "52F89E31-4C4F-4596-8BDB-DD6AA202A66B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.1.3:*:*:*:*:*:*:*",
"matchCriteriaId": "13B423FE-A656-4E05-8E56-ADA3BB25055C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.1.4:*:*:*:*:*:*:*",
"matchCriteriaId": "A4533F4B-B737-4AE8-8BE4-52F18AC81CF3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.2.0:*:*:*:*:*:*:*",
"matchCriteriaId": "73161FA8-6BDB-480A-959A-FE75A0A094A9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.3.0:*:*:*:*:*:*:*",
"matchCriteriaId": "5D831D74-1D1A-43BF-989C-CA2541B34F2B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.3.1:*:*:*:*:*:*:*",
"matchCriteriaId": "EA886F91-162A-4272-A854-E4C2ABA1880F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "C73DAC9F-AF34-412B-8483-BD642E9AD7CB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.4.1:*:*:*:*:*:*:*",
"matchCriteriaId": "2E5F1142-E4BC-4AC4-AB85-33A5AC35D7A9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.4.2:*:*:*:*:*:*:*",
"matchCriteriaId": "03C05F7D-BA83-44D4-8E47-45CF339EFB63",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.4.3:*:*:*:*:*:*:*",
"matchCriteriaId": "9A312B4E-F43D-4649-A8F8-811657D5D6EA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.5.0:*:*:*:*:*:*:*",
"matchCriteriaId": "8E9BD996-6003-4ACA-A661-810018EF750D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.6.0:*:*:*:*:*:*:*",
"matchCriteriaId": "15117F01-79FF-47A7-8D1E-BA1F8E96A1ED",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.6.1:*:*:*:*:*:*:*",
"matchCriteriaId": "FB4C433A-9796-4C11-8B3F-DD93191B200F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.6.2:*:*:*:*:*:*:*",
"matchCriteriaId": "C63DB55C-3454-4E28-9BE3-6E2AF7F0C2C4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.6.3:*:*:*:*:*:*:*",
"matchCriteriaId": "DBAF238F-6E35-4C79-BA57-9DFBCE1F32DF",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "09FB5DCD-94E2-469E-83E8-E7489DFECF28",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "813E3390-A91A-440E-947F-98777CF0C008",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.1:*:*:*:*:*:*:*",
"matchCriteriaId": "83BAB091-5DF5-48D1-B12F-FAA7AE304BAE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.2:*:*:*:*:*:*:*",
"matchCriteriaId": "832106E3-7743-412D-B92E-CF8F4AFD630E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.3:*:*:*:*:*:*:*",
"matchCriteriaId": "29EA91C5-EAD8-476C-A198-3BB9D11DF47F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.4:*:*:*:*:*:*:*",
"matchCriteriaId": "00E17910-D6CC-4AE3-B119-90798F441338",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:0.8.5:*:*:*:*:*:*:*",
"matchCriteriaId": "7DE2045F-C0EB-433F-8D44-7B257AF1A976",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.0:*:*:*:*:*:*:*",
"matchCriteriaId": "BD03AAD4-18CE-4109-B63E-F0447AD5D57E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.1:*:*:*:*:*:*:*",
"matchCriteriaId": "F60C96B3-834A-467E-B823-56F95AC53394",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.2:*:*:*:*:*:*:*",
"matchCriteriaId": "2BC5660E-D2FB-4D73-8D45-BC92388CFA6B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.3:*:*:*:*:*:*:*",
"matchCriteriaId": "EF5CED20-DF1C-4172-ABC4-BB8C88A59D71",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.4:*:*:*:*:*:*:*",
"matchCriteriaId": "2B75E57F-D5A5-4925-95A1-7680D9A186C8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.5:*:*:*:*:*:*:*",
"matchCriteriaId": "E71A841C-1ED3-4634-8BA4-5F0A50CB6636",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.6:*:*:*:*:*:*:*",
"matchCriteriaId": "CE437EFD-6F1F-4946-91A7-E198DDC70693",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.8:*:*:*:*:*:*:*",
"matchCriteriaId": "94F9FEC8-15D0-4327-975F-359A595A10B7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.9:*:*:*:*:*:*:*",
"matchCriteriaId": "6AD2F2D6-BD1A-4413-9499-B45352AE5D2F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.10:*:*:*:*:*:*:*",
"matchCriteriaId": "2011EBF2-DAF7-4F9A-861E-8C7CB01E9620",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.11:*:*:*:*:*:*:*",
"matchCriteriaId": "894E6D56-3A5F-49DC-B99D-2148B548335B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.12:*:*:*:*:*:*:*",
"matchCriteriaId": "6DF077CF-E698-4506-8AD8-B339166298BA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.13:*:*:*:*:*:*:*",
"matchCriteriaId": "6D879455-E7E1-448C-A425-E9C576540E73",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.14:*:*:*:*:*:*:*",
"matchCriteriaId": "68D38E74-A95C-4009-AEBD-3575A98824AE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.15:*:*:*:*:*:*:*",
"matchCriteriaId": "3B8B0B5D-9932-4924-B0C9-C10B8EA46F56",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.16:*:*:*:*:*:*:*",
"matchCriteriaId": "A0432B82-D516-4771-9D2E-684CA81A5680",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:martin_lambers:mpop:1.0.17:*:*:*:*:*:*:*",
"matchCriteriaId": "F6A767CC-D28E-497E-9CB5-DE930304C7C7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a \u0027\\0\u0027 character in a domain name in the (1) subject\u0027s Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408."
},
{
"lang": "es",
"value": "Martin Lambers mpop versiones anteriores a v1.4.19, cuando usa OpenSSL, no maneja adecuadamente un car\u00e1cter \u0027\\0\u0027 en un nombre de dominio (1) en el campo nombre com\u00fan del sujeto o (2) en el campo nombre alternativo del sujeto de un certificado X.509, permitiendo que atacantes de hombre en medio (man-in-the-middle) suplantar a servidores SSL de su elecci\u00f3n mediante un certificado modificado emitido por una Autoridad de Certificaci\u00f3n leg\u00edtima, estando relacionado con el CVE-2009-2408."
}
],
"id": "CVE-2009-3941",
"lastModified": "2026-04-23T00:35:47.467",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2009-11-16T19:30:01.047",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://mpop.sourceforge.net/news.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/37312"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://www.vupen.com/english/advisories/2009/3225"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://mpop.sourceforge.net/news.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/37312"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://www.vupen.com/english/advisories/2009/3225"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-310"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-11-21T13:09:42+00:00",
"cve": "CVE-2009-3941",
"id": "CVE-2009-3941",
"initial_release_date": "2009-10-24T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "mpop NULL character certificate flaw",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-3941.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…