FKIE_CVE-2018-0739
Vulnerability from fkie_nvd - Published: 2018-03-27 21:29 - Updated: 2026-06-17 01:31
Severity
Summary
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| openssl | openssl | * | |
| openssl | openssl | * | |
| canonical | ubuntu_linux | 14.04 | |
| canonical | ubuntu_linux | 16.04 | |
| canonical | ubuntu_linux | 17.10 | |
| debian | debian_linux | 7.0 | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 |
{
"affected": [
{
"affectedData": [
{
"product": "OpenSSL",
"vendor": "OpenSSL",
"versions": [
{
"status": "affected",
"version": "Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)"
},
{
"status": "affected",
"version": "Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n)"
}
]
}
],
"source": "openssl-security@openssl.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "FFF63A06-9A8B-4280-A52D-4280136908CB",
"versionEndIncluding": "1.0.2n",
"versionStartIncluding": "1.0.2b",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "322768B5-2E14-40B9-A784-8981F4376E13",
"versionEndIncluding": "1.1.0g",
"versionStartIncluding": "1.1.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
"matchCriteriaId": "9070C9D8-A14A-467F-8253-33B966C16886",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n)."
},
{
"lang": "es",
"value": "Los tipos constructed ASN.1 con una definici\u00f3n recursiva (como la que podemos encontrar en PKCS7) podr\u00edan acabar excediendo la pila debido a entradas maliciosas con recursi\u00f3n excesiva. Esto podr\u00eda dar como resultado un ataque de denegaci\u00f3n de servicio (DoS). No hay estructuras de este tipo empleadas en SSL/TLS que provengan de fuentes no fiables, por lo que se consideran seguras. Solucionado en OpenSSL 1.1.0h (versiones 1.1.0-1.1.0g afectadas). Solucionado en OpenSSL 1.0.2o (versiones 1.0.2b-1.0.2n afectadas)."
}
],
"id": "CVE-2018-0739",
"lastModified": "2026-06-17T01:31:33.610",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-03-27T21:29:00.673",
"references": [
{
"source": "openssl-security@openssl.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"
},
{
"source": "openssl-security@openssl.org",
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
"source": "openssl-security@openssl.org",
"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103518"
},
{
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"url": "http://www.securityfocus.com/bid/105609"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1040576"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2018:3090"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2018:3221"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2018:3505"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2019:0366"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2019:0367"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2019:1711"
},
{
"source": "openssl-security@openssl.org",
"url": "https://access.redhat.com/errata/RHSA-2019:1712"
},
{
"source": "openssl-security@openssl.org",
"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2ac4c6f7b2b2af20c0e2b0ba05367e454cd11b33"
},
{
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},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00033.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/"
},
{
"source": "openssl-security@openssl.org",
"url": "https://security.gentoo.org/glsa/201811-21"
},
{
"source": "openssl-security@openssl.org",
"url": "https://security.gentoo.org/glsa/202007-53"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20180330-0002/"
},
{
"source": "openssl-security@openssl.org",
"url": "https://security.netapp.com/advisory/ntap-20180726-0002/"
},
{
"source": "openssl-security@openssl.org",
"url": "https://securityadvisories.paloaltonetworks.com/Home/Detail/133"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3611-1/"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3611-2/"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4157"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2018/dsa-4158"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.openssl.org/news/secadv/20180327.txt"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.oracle.com//security-alerts/cpujul2021.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.tenable.com/security/tns-2018-04"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.tenable.com/security/tns-2018-06"
},
{
"source": "openssl-security@openssl.org",
"url": "https://www.tenable.com/security/tns-2018-07"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
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},
{
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"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"
},
{
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"url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
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{
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"url": "http://www.securityfocus.com/bid/105609"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"VDB Entry"
],
"url": "http://www.securitytracker.com/id/1040576"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2018:3090"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2018:3221"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2018:3505"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2019:0366"
},
{
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=2ac4c6f7b2b2af20c0e2b0ba05367e454cd11b33"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=9310d45087ae546e27e61ddf8f6367f29848220d"
},
{
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"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00033.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://nodejs.org/en/blog/vulnerability/march-2018-security-releases/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/201811-21"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://security.gentoo.org/glsa/202007-53"
},
{
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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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},
{
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},
{
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},
{
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}
],
"sourceIdentifier": "openssl-security@openssl.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-674"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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