CVE-2016-2517

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.kb.cert.org/vuls/id/718152", "name": "VU#718152", "tags": ["Third Party Advisory", "US Government Resource"], "refsource": "CERT-VN"}, {"url": "http://support.ntp.org/bin/view/Main/NtpBug3010", "name": "http://support.ntp.org/bin/view/Main/NtpBug3010", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}, {"url": "http://www.securityfocus.com/bid/88189", "name": "88189", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html", "name": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://security.gentoo.org/glsa/201607-15", "name": "GLSA-201607-15", "tags": [], "refsource": "GENTOO"}, {"url": "http://www.securitytracker.com/id/1035705", "name": "1035705", "tags": [], "refsource": "SECTRACK"}, {"url": "https://security.netapp.com/advisory/ntap-20171004-0002/", "name": "https://security.netapp.com/advisory/ntap-20171004-0002/", "tags": [], "refsource": "CONFIRM"}, {"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc", "name": "FreeBSD-SA-16:16", "tags": [], "refsource": "FREEBSD"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-20"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-2517", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.9, "accessVector": "NETWORK", "vectorString": "AV:N/AC:H/Au:S/C:N/I:N/A:C", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "HIGH", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "impactScore": 6.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.6}}, "publishedDate": "2017-01-30T21:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ntp:ntp:*:p6:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "4.2.8"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.11:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.18:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.19:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.25:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:ntp:ntp:4.3.26:*:*:*:*:*:*:*", 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