CVE-2018-0739 (GCVE-0-2018-0739)
Vulnerability from cvelistv5 – Published: 2018-03-27 21:00 – Updated: 2024-09-16 22:35
VLAI
EPSS
VEX
Title
Constructed ASN.1 types with a recursive definition could exceed the stack
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).
Severity
No CVSS data available.
CWE
- Stack overflow
Assigner
References
34 references
Impacted products
Date Public
2018-03-27 00:00
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"datePublished": "2018-03-27T21:00:00.000Z",
"dateReserved": "2017-11-30T00:00:00.000Z",
"dateUpdated": "2024-09-16T22:35:29.998Z",
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"sourceIdentifier": "openssl-security@openssl.org",
"vulnStatus": "Modified",
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T11:47:54+00:00",
"cve": "CVE-2018-0739",
"id": "CVE-2018-0739",
"initial_release_date": "2018-03-27T00:00:00+00:00",
"product_status:fixed": "314",
"product_status:known_affected": "15",
"product_status:known_not_affected": "6",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "openssl: Handling of crafted recursive ASN.1 structures can cause a stack overflow and resulting denial of service",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-0739.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-03T00:57:24Z",
"cve": "CVE-2018-0739",
"id": "CVE-2018-0739",
"initial_release_date": "2023-02-15T04:34:44Z",
"product_status:known_affected": "356",
"product_status:known_not_affected": "500",
"product_status:recommended": "946",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2018-0739",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-0739.json",
"version": "55"
}
}
}
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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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