FKIE_CVE-2017-17484
Vulnerability from fkie_nvd - Published: 2017-12-10 20:29 - Updated: 2026-06-17 01:10
Severity
Summary
The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| icu-project | international_components_for_unicode | * |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\\/c\\+\\+:*:*",
"matchCriteriaId": "1A1E199C-0283-4005-A917-28E7B62394E6",
"versionEndIncluding": "60.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode (ICU) for C/C++ through 60.1 mishandles ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC."
},
{
"lang": "es",
"value": "La funci\u00f3n ucnv_UTF8FromUTF8 en ucnv_u8.cpp en International Components for Unicode (ICU) para C/C++ hasta la versi\u00f3n 60.1 gestiona de manera incorrecta las llamadas ucnv_convertEx para la conversi\u00f3n UTF-8 a UTF-8. Esto permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (desbordamiento de b\u00fafer basado en pila y cierre inesperado de la aplicaci\u00f3n) o, posiblemente, causen otro impacto sin especificar mediante una cadena manipulada, tal y como demuestra ZNC."
}
],
"id": "CVE-2017-17484",
"lastModified": "2026-06-17T01:10:51.867",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2017-12-10T20:29:00.197",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/znc/znc/issues/1459"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp"
},
{
"source": "cve@mitre.org",
"tags": [
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"Patch",
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],
"url": "https://ssl.icu-project.org/trac/changeset/40714"
},
{
"source": "cve@mitre.org",
"tags": [
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"url": "https://ssl.icu-project.org/trac/changeset/40715"
},
{
"source": "cve@mitre.org",
"tags": [
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"url": "https://ssl.icu-project.org/trac/ticket/13490"
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{
"source": "cve@mitre.org",
"tags": [
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"Vendor Advisory"
],
"url": "https://ssl.icu-project.org/trac/ticket/13510"
},
{
"source": "cve@mitre.org",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/znc/znc/issues/1459"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
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],
"url": "https://ssl.icu-project.org/trac/changeset/40714"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://ssl.icu-project.org/trac/changeset/40715"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://ssl.icu-project.org/trac/ticket/13490"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://ssl.icu-project.org/trac/ticket/13510"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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
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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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