CVE-2015-7979

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"matchCriteriaId": "0C845718-520A-42CB-9BA7-00723694A01F", "vulnerable": true}, {"criteria": "cpe:2.3:a:ntp:ntp:4.3.86:*:*:*:*:*:*:*", "matchCriteriaId": "FAB7BF51-DD1A-41E1-B5E5-02A6BADC30DE", "vulnerable": true}, {"criteria": "cpe:2.3:a:ntp:ntp:4.3.87:*:*:*:*:*:*:*", "matchCriteriaId": "431DA557-0977-43C2-8DEF-127B1BAA9F46", "vulnerable": true}, {"criteria": "cpe:2.3:a:ntp:ntp:4.3.88:*:*:*:*:*:*:*", "matchCriteriaId": "733C0A5D-3A0A-4449-9DE0-BD06D4942799", "vulnerable": true}, {"criteria": "cpe:2.3:a:ntp:ntp:4.3.89:*:*:*:*:*:*:*", "matchCriteriaId": "C9E5DAD5-465A-4A53-856A-1F674723EB00", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client."}, {"lang": "es", "value": "NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 permite a atacantes remotos causar una denegaci\u00f3n de servicio (asociaci\u00f3n cliente-servidor) por el env\u00edo de paquetes de difusi\u00f3n con autenticaci\u00f3n no v\u00e1lida a un cliente transmisor."}], "id": "CVE-2015-7979", "lastModified": "2026-06-17T00:33:30.097", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "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": "2017-01-30T21:59:00.613", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": 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"af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/81816"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1034782"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-3096-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2016:1141"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://bto.bluecoat.com/security-advisory/sa113"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/201607-15"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20171031-0001/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "https://www.kb.cert.org/vuls/id/718152"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-19"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2016:1141", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "ntp-0:4.2.6p5-10.el6.1", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-05-31T00:00:00Z"}, {"advisory": "RHSA-2016:1552", "cpe": "cpe:/o:redhat:rhel_eus:6.7", "package": "ntp-0:4.2.6p5-5.el6_7.5", "product_name": "Red Hat Enterprise Linux 6.7 Extended Update Support", "release_date": "2016-08-03T00:00:00Z"}, {"advisory": "RHSA-2016:1141", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "ntp-0:4.2.6p5-22.el7_2.2", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-05-31T00:00:00Z"}, {"advisory": "RHSA-2016:2583", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "ntp-0:4.2.6p5-25.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-11-03T00:00:00Z"}], "bugzilla": {"description": "ntp: off-path denial of service on authenticated broadcast mode", "id": "1300271", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1300271"}, "csaw": false, "cvss": {"cvss_base_score": "5.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:P/A:P", "status": "verified"}, "cwe": "CWE-20", "details": ["NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client.", "It was found that when NTP was configured in broadcast mode, a remote attacker could broadcast packets with bad authentication to all clients. The clients, upon receiving the malformed packets, would break the association with the broadcast server, causing them to become out of sync over a longer period of time."], "mitigation": {"lang": "en:us", "value": "Do not use NTP's broadcast mode by not configuring the \"broadcast\" directive in the ntp.conf file."}, "name": "CVE-2015-7979", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "ntp", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2016-01-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-7979\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-7979\nhttp://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit\nhttp://www.talosintel.com/reports/TALOS-2016-0076/"], "statement": "This issue affects the versions of ntp as shipped with Red Hat Enterprise Linux 5, 6, and 7. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue in Red Hat Enterprise Linux 6 and 7. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.", "threat_severity": "Moderate"}

{}