{"id":"CVE-2019-6467","state":"PUBLISHED","title":"An error in the nxdomain redirect feature can cause BIND to exit with an INSIST assertion failure in query.c","description":"A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.","publishedAt":"2019-10-09T14:17:14.449Z","updatedAt":"2024-09-17T00:11:15.675Z","severity":{"score":5.9,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"isc"},"assigner":"isc","products":["ISC BIND 9"],"affected":[{"vendor":"ISC","product":"BIND 9","versions":[{"version":"BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.","status":"affected"}]}],"references":["https://kb.isc.org/docs/cve-2019-6467","https://www.synology.com/security/advisory/Synology_SA_19_20"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:06.737Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/6xxx/CVE-2019-6467.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-6467","state":"PUBLISHED","datePublished":"2019-10-09T14:17:14.449Z","dateUpdated":"2024-09-17T00:11:15.675Z","assignerShortName":"isc","assignerOrgId":"404fd4d2-a609-4245-b543-2c944a302a22","dateReserved":"2019-01-16T00:00:00.000Z"},"containers":{"cna":{"title":"An error in the nxdomain redirect feature can cause BIND to exit with an INSIST assertion failure in query.c","descriptions":[{"lang":"en","value":"A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. 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Also affects all releases in the 9.13 development branch.","status":"affected"}]}],"references":[{"url":"https://kb.isc.org/docs/cve-2019-6467","tags":["x_refsource_CONFIRM"]},{"url":"https://www.synology.com/security/advisory/Synology_SA_19_20","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_0":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"}}],"problemTypes":[{"descriptions":[{"description":"An attacker who can deliberately trigger the condition on a server with a vulnerable configuration can cause BIND to exit, denying service to other clients.","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"isc","dateUpdated":"2019-12-18T17:06:11.000Z","orgId":"404fd4d2-a609-4245-b543-2c944a302a22"},"credits":[{"lang":"en","value":"ISC would like to thank Quad9 for reporting this issue."}],"datePublic":"2019-04-24T00:00:00.000Z","solutions":[{"lang":"en","value":"Upgrade to the patched release most closely related to your current version of BIND:\n\n+   BIND 9.12.4-P1\n+   BIND 9.14.1"}],"source":{"discovery":"USER"},"workarounds":[{"lang":"en","value":"Exploitation of this defect can be effectively prevented by disabling the nxdomain-redirect feature in the nameserver's configuration."}],"x_generator":{"engine":"Vulnogram 0.0.7"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-officer@isc.org","DATE_PUBLIC":"2019-04-24T23:00:00.000Z","ID":"CVE-2019-6467","STATE":"PUBLIC","TITLE":"An error in the nxdomain redirect feature can cause BIND to exit with an INSIST assertion failure in query.c"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"BIND 9","version":{"version_data":[{"version_name":"BIND 9","version_value":"BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch."}]}}]},"vendor_name":"ISC"}]}},"credit":[{"lang":"eng","value":"ISC would like to thank Quad9 for reporting this issue."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. 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