CVE-2014-0016 (GCVE-0-2014-0016)
Vulnerability from cvelistv5 – Published: 2014-03-23 15:00 – Updated: 2024-08-06 08:58
VLAI
EPSS
VEX
Summary
stunnel before 5.00, when using fork threading, does not properly update the state of the OpenSSL pseudo-random number generator (PRNG), which causes subsequent children with the same process ID to use the same entropy pool and allows remote attackers to obtain private keys for EC (ECDSA) or DSA certificates.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.stunnel.org/sdf_ChangeLog.html | x_refsource_CONFIRM |
| https://bugzilla.redhat.com/attachment.cgi?id=870… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2014/03/05/1 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1072180 | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/65964 | vdb-entryx_refsource_BID |
Date Public
2014-03-05 00:00
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"lang": "en",
"value": "stunnel before 5.00, when using fork threading, does not properly update the state of the OpenSSL pseudo-random number generator (PRNG), which causes subsequent children with the same process ID to use the same entropy pool and allows remote attackers to obtain private keys for EC (ECDSA) or DSA certificates."
},
{
"lang": "es",
"value": "stunnel anterior a 5.00, cuando utilizando hilo de bifurcaci\u00f3n, no actualiza debidamente el estado del generador de n\u00fameros psuedoaleatorios OpenSSL (PRNG), lo que causa que hijos posteriores con el mismo proceso ID utilicen el mismo pool de entrop\u00eda y permite a atacantes remotos obtener claves privadas para certificados EC (ECDSA) o DSA."
}
],
"id": "CVE-2014-0016",
"lastModified": "2024-11-21T02:01:10.920",
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{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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}
]
},
"published": "2014-03-24T16:31:08.447",
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"tags": [
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],
"negate": false,
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "stunnel before 5.00, when using fork threading, does not properly update the state of the OpenSSL pseudo-random number generator (PRNG), which causes subsequent children with the same process ID to use the same entropy pool and allows remote attackers to obtain private keys for EC (ECDSA) or DSA certificates."
},
{
"lang": "es",
"value": "stunnel anterior a 5.00, cuando utilizando hilo de bifurcaci\u00f3n, no actualiza debidamente el estado del generador de n\u00fameros psuedoaleatorios OpenSSL (PRNG), lo que causa que hijos posteriores con el mismo proceso ID utilicen el mismo pool de entrop\u00eda y permite a atacantes remotos obtener claves privadas para certificados EC (ECDSA) o DSA."
}
],
"id": "CVE-2014-0016",
"lastModified": "2026-05-06T22:30:45.220",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2014-03-24T16:31:08.447",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
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"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2014/03/05/1"
},
{
"source": "secalert@redhat.com",
"tags": [
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"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/65964"
},
{
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"tags": [
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],
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},
{
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"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1072180"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "https://www.stunnel.org/sdf_ChangeLog.html"
},
{
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"tags": [
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],
"url": "http://www.openwall.com/lists/oss-security/2014/03/05/1"
},
{
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"tags": [
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},
{
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"tags": [
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}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-332"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T12:34:20+00:00",
"cve": "CVE-2014-0016",
"id": "CVE-2014-0016",
"initial_release_date": "2014-03-05T00:00:00+00:00",
"product_status:known_not_affected": "4",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "stunnel: Improper initialization of PRNG after fork()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2014/cve-2014-0016.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-07-29T00:12:25Z",
"cve": "CVE-2014-0016",
"id": "CVE-2014-0016",
"initial_release_date": "2023-02-15T05:33:02Z",
"product_status:known_affected": "2",
"product_status:known_not_affected": "38",
"product_status:recommended": "33",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2014-0016",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2014-0016.json",
"version": "9"
}
}
}
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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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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.
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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.
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