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This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4."}]},"generator":{"engine":"Vulnogram 0.0.8"},"impact":{"cvss":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"An attacker who manages to deliberately trigger this condition on a server which is performing recursion can cause named to exit, denying service to clients."}]}]},"references":{"reference_data":[{"name":"https://kb.isc.org/docs/cve-2019-6476","refsource":"CONFIRM","url":"https://kb.isc.org/docs/cve-2019-6476"},{"refsource":"CONFIRM","name":"https://security.netapp.com/advisory/ntap-20191024-0004/","url":"https://security.netapp.com/advisory/ntap-20191024-0004/"},{"refsource":"CONFIRM","name":"https://support.f5.com/csp/article/K42238532?utm_source=f5support&amp;utm_medium=RSS","url":"https://support.f5.com/csp/article/K42238532?utm_source=f5support&amp;utm_medium=RSS"}]},"solution":[{"lang":"eng","value":"Upgrade to the patched release most closely related to your current version of BIND:\n   +  BIND 9.14.7\n   +  BIND 9.15.5\n"}],"source":{"discovery":"USER"},"work_around":[{"lang":"eng","value":"ervers which have QNAME minimization turned on are potentially vulnerable to this defect if they are running an affected version of BIND. The vulnerability can be avoided by disabling QNAME minimization using \"qname-minimization disabled;\" in the global options section of named.conf (Note: the default value for the qname-minimization setting in the 9.14 and 9.15 branches is \"relaxed\". 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This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"6476","Ordinal":"2","NoteData":"2019-10-17","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"6476","Ordinal":"3","NoteData":"2019-11-19","Type":"Other","Title":"Modified"}]}}}