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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:opensc_project:opensc:*:*:*:*:*:*:*:*", "matchCriteriaId": "85C3EC93-1A01-4E7D-9730-F8429C1CD145", "versionEndIncluding": "0.18.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID in libopensc/card-cac.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact."}, {"lang": "es", "value": "Varios desbordamientos de b\u00fafer al manejar las respuestas de una CAC Card en cac_get_serial_nr_from_CUID en libopensc/card-cac.c en OpenSC en versiones anteriores a la 0.19.0-rc1 podr\u00edan ser empleados por atacantes para proporcionar smartcards manipuladas para provocar una denegaci\u00f3n de servicio (cierre inesperado de la aplicaci\u00f3n) o, posiblemente, otro tipo de impacto sin especificar."}], "id": "CVE-2018-16421", "lastModified": "2026-06-17T01:44:15.490", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 0.7, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-09-04T00:29:00.653", "references": [{"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2019:2154"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1"}, {"source": "cve@mitre.org", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2019:2154"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/commit/360e95d45ac4123255a4c796db96337f332160ad#diff-848b13147a344ba2c6361d91ca77feb1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Release Notes", "Third Party Advisory"], "url": "https://github.com/OpenSC/OpenSC/releases/tag/0.19.0-rc1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2019/09/msg00009.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2019:2154", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "opensc-0:0.19.0-3.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-08-06T00:00:00Z"}], "bugzilla": {"description": "opensc: Buffer overflows handling responses from CAC Cards in card-cac.c:cac_get_serial_nr_from_CUID()", "id": "1628034", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1628034"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "status": "verified"}, "cwe": "CWE-120", "details": ["Several buffer overflows when handling responses from a CAC Card in cac_get_serial_nr_from_CUID in libopensc/card-cac.c in OpenSC before 0.19.0-rc1 could be used by attackers able to supply crafted smartcards to cause a denial of service (application crash) or possibly have unspecified other impact."], "name": "CVE-2018-16421", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "opensc", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-09-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-16421\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-16421\nhttps://www.x41-dsec.de/lab/advisories/x41-2018-002-OpenSC/"], "threat_severity": "Moderate"}

{}