CVE-2017-17484

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{"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"}]}], "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": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/changeset/40714"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/changeset/40715"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/ticket/13490"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "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": ["Issue Tracking", "Third Party Advisory"], "url": "https://github.com/znc/znc/issues/1459"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/attachment/ticket/13490/poc.cpp"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/changeset/40714"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/changeset/40715"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://ssl.icu-project.org/trac/ticket/13490"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "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"}]}

{"bugzilla": {"description": "icu: stack-based buffer overflow in ucnv_u8.cpp:ucnv_UTF8FromUTF8 can lead to denial of service", "id": "1524819", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1524819"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.3", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-121", "details": ["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."], "name": "CVE-2017-17484", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "icu", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "icu", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "icu", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-11-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-17484\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-17484"], "statement": "This issue did not affect the versions of icu as shipped with Red Hat Enterprise Linux 5, 6, and 7.", "threat_severity": "Moderate"}

{}