CVE-2017-3731 (GCVE-0-2017-3731)
Vulnerability from cvelistv5 – Published: 2017-05-04 19:00 – Updated: 2024-09-16 22:40
VLAI
EPSS
VEX
Title
Truncated packet could crash via OOB read
Summary
If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.
Severity
No CVSS data available.
CWE
- out-of-bounds read
Assigner
References
20 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| OpenSSL | OpenSSL |
Affected:
openssl-1.1.0
Affected: openssl-1.1.0a Affected: openssl-1.1.0b Affected: openssl-1.1.0c Affected: openssl-1.0.2 Affected: openssl-1.0.2a Affected: openssl-1.0.2b Affected: openssl-1.0.2c Affected: openssl-1.0.2d Affected: openssl-1.0.2e Affected: openssl-1.0.2f Affected: openssl-1.0.2g Affected: openssl-1.0.2h Affected: openssl-1.0.2i Affected: openssl-1.0.2j |
guessed |
Date Public
2017-01-26 00:00
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"matchCriteriaId": "7B23181C-03DB-4E92-B3F6-6B585B5231B4",
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{
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{
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"matchCriteriaId": "E15B749E-6808-4788-AE42-7A1587D8697E",
"vulnerable": true
}
],
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}
]
},
{
"nodes": [
{
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"matchCriteriaId": "A47FC4F7-1F77-4314-B4B3-3C5D8E335379",
"versionEndIncluding": "4.1.2",
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},
{
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},
{
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},
{
"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*",
"matchCriteriaId": "14346EBC-1890-472B-B236-06FE381229EC",
"versionEndExcluding": "6.9.5",
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},
{
"criteria": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*",
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k."
},
{
"lang": "es",
"value": "Si un servidor o cliente SSL/TLS se ejecuta en un host de 32 bits y se utiliza un cifrador espec\u00edfico, un paquete truncado puede dar lugar a que el servidor o el cliente realicen una lectura fuera de l\u00edmites que, normalmente, provoca un cierre inesperado En OpenSSL 1.1.0, el cierre inesperado se puede desencadenar cuando se usa CHACHA20/POLY1305"
}
],
"id": "CVE-2017-3731",
"lastModified": "2026-05-13T00:24:29.033",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
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"source": "nvd@nist.gov",
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}
],
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{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
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"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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"impactScore": 3.6,
"source": "nvd@nist.gov",
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}
]
},
"published": "2017-05-04T19:29:00.353",
"references": [
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "http://rhn.redhat.com/errata/RHSA-2017-0286.html"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2017/dsa-3773"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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"Third Party Advisory"
],
"url": "http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"
},
{
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"tags": [
"Patch",
"Third Party Advisory"
],
"url": "http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html"
},
{
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"tags": [
"Patch",
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],
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},
{
"source": "openssl-security@openssl.org",
"tags": [
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"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/95813"
},
{
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],
"url": "http://www.securitytracker.com/id/1037717"
},
{
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"tags": [
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],
"url": "https://access.redhat.com/errata/RHSA-2018:2185"
},
{
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],
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},
{
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],
"url": "https://access.redhat.com/errata/RHSA-2018:2187"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/openssl/openssl/commit/00d965474b22b54e4275232bc71ee0c699c5cd21"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-17:02.openssl.asc"
},
{
"source": "openssl-security@openssl.org",
"tags": [
"Third Party Advisory"
],
"url": "https://security.gentoo.org/glsa/201702-07"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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],
"url": "https://security.netapp.com/advisory/ntap-20171019-0002/"
},
{
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],
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},
{
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],
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},
{
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],
"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03838en_us"
},
{
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"tags": [
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],
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},
{
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"tags": [
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],
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"source": "openssl-security@openssl.org",
"tags": [
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],
"url": "https://www.tenable.com/security/tns-2017-04"
},
{
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{
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},
"redhat_vex": {
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"current_release_date": "2026-08-04T21:55:14+00:00",
"cve": "CVE-2017-3731",
"id": "CVE-2017-3731",
"initial_release_date": "2017-01-26T00:00:00+00:00",
"product_status:fixed": "327",
"product_status:known_affected": "7",
"product_status:known_not_affected": "8",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "openssl: Truncated packet could crash via OOB read",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-3731.json",
"version": "3"
}
}
}
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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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