CVE-2019-9496

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Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-642", "description": "CWE-642 External Control of Critical State Data", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-02-16T00:06:10.000Z", "orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://w1.fi/security/2019-3/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"}, {"name": "FEDORA-2019-d03bae77f5", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"}, {"name": "FEDORA-2019-f409af9fbe", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"}, {"name": "FEDORA-2019-eba1109acd", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"}, {"name": "FreeBSD-SA-19:03", "tags": ["vendor-advisory", "x_refsource_FREEBSD"], "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"}, {"name": "20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpa", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "https://seclists.org/bugtraq/2019/May/40"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"}, {"name": "openSUSE-SU-2020:0222", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"}], "source": {"discovery": "UNKNOWN"}, "title": "An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps", "x_generator": {"engine": "Vulnogram 0.0.6"}, "x_legacyV4Record": {"CVE_data_meta": {"AKA": "Dragonblood", "ASSIGNER": "cert@cert.org", "ID": "CVE-2019-9496", "STATE": "PUBLIC", "TITLE": "An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "hostapd with SAE support", "version": {"version_data": [{"version_affected": "<=", "version_name": "2.7", "version_value": "2.7"}]}}, {"product_name": "wpa_supplicant with SAE support", "version": {"version_data": [{"version_affected": "<=", "version_name": "2.7", "version_value": "2.7"}]}}]}, "vendor_name": "Wi-Fi Alliance"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. 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{}

{"affected": [{"affectedData": [{"product": "hostapd with SAE support", "vendor": "Wi-Fi Alliance", "versions": [{"lessThanOrEqual": "2.7", "status": "affected", "version": "2.7", "versionType": "custom"}]}, {"product": "wpa_supplicant with SAE support", "vendor": "Wi-Fi Alliance", "versions": [{"lessThanOrEqual": "2.7", "status": "affected", "version": "2.7", "versionType": "custom"}]}], "source": "cret@cert.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:*", "matchCriteriaId": "5133129D-DA6B-485D-9FE7-33C994FBAF05", "versionEndIncluding": "2.7", "vulnerable": true}, {"criteria": "cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:*", "matchCriteriaId": "46294B0E-0043-487D-AD8F-931DC05F0E78", "versionEndIncluding": "2.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*", "matchCriteriaId": "DC1BD7B7-6D88-42B8-878E-F1318CA5FCAF", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*", "matchCriteriaId": "D100F7CE-FC64-4CC6-852A-6136D72DA419", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected."}, {"lang": "es", "value": "Una secuencia de autorizaci\u00f3n no v\u00e1lida puede conllevar a que el proceso de hostapd termine a causa de que faltan pasos de comprobaci\u00f3n de estado al procesar el mensaje de confirmaci\u00f3n SAE cuando est\u00e1 en el modo hostapd/AP. Todas las versiones de hostapd con soporte SAE son vulnerables. Un atacante puede forzar la terminaci\u00f3n del proceso de hostapd, realizando un ataque de Denegaci\u00f3n de Servicio (DoS). Tanto hostapd con soporte SAE como wpa_supplicant con soporte SAE e incluyendo la versi\u00f3n 2.7 est\u00e1n afectados."}], "id": "CVE-2019-9496", "lastModified": "2026-06-17T02:43:49.203", "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, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-04-17T14:29:03.917", "references": [{"source": "cret@cert.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"}, {"source": "cret@cert.org", "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"}, {"source": "cret@cert.org", "url": "https://seclists.org/bugtraq/2019/May/40"}, {"source": "cret@cert.org", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"}, {"source": "cret@cert.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://w1.fi/security/2019-3/"}, {"source": "cret@cert.org", "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://seclists.org/bugtraq/2019/May/40"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://w1.fi/security/2019-3/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-642"}], "source": "cret@cert.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Eyal Ronen (Tel Aviv University & KU Leuven) and Mathy Vanhoef (NYUAD) for reporting this issue.", "bugzilla": {"description": "hostapd: SAE confirm missing state validation in hostapd/AP", "id": "1699153", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1699153"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-642", "details": ["An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected."], "name": "CVE-2019-9496", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2019-04-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-9496\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9496\nhttps://w1.fi/security/2019-3/sae-confirm-missing-state-validation.txt\nhttps://www.kb.cert.org/vuls/id/871675/"], "statement": "Red Hat Enterprise Linux 5, 6, and 7 do not ship hostapd and they are not affected by this flaw.", "threat_severity": "Moderate"}

{}