{"id":"CVE-2019-6476","aliases":["ALPINE-CVE-2019-6476","BELL-CVE-2019-6476","EUVD-2019-16036","GHSA-7rr8-wvj2-chhv","openSUSE-SU-2024:10650-1"],"status":"published","title":"An error in QNAME minimization code can cause BIND to exit with an assertion failure","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.02963,"percentile":0.87308,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-617"],"published":"2019-10-17T19:17:39Z","modified":"2026-10-24T10:30:25Z","fixes":[{"ecosystem":"Alpine:v3.10","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.11","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"bind","fixed_in":["9.14.7-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.10","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.11","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.14.0"},{"fixed":"9.14.7-r0"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"bind","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.16.20-1.4"}]}],"bundled":32}],"products":[{"vendor":"isc","product":"bind"},{"vendor":"isc","product":"bind 9"}],"references":[{"url":"https://kb.isc.org/docs/cve-2019-6476","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20191024-0004/","tags":["x_refsource_CONFIRM","x_transferred","advisory"]},{"url":"https://support.f5.com/csp/article/K42238532?utm_source=f5support\u0026amp%3Butm_medium=RSS","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6476"},{"url":"https://security.netapp.com/advisory/ntap-20191024-0004"},{"url":"https://github.com/advisories/GHSA-7rr8-wvj2-chhv"},{"url":"https://security.alpinelinux.org/vuln/CVE-2019-6476","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2019-6476","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2006-4339","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2007-2925","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2007-2926","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8461","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-2775","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9131","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9778","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-3135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-3141","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-3142","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-3145","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5737","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5743","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5745","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-6465","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-6471","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-6476","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-6477","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8616","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8617","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8618","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8619","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8620","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8621","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8622","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8623","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8624","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8625","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-25214","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-25215","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-25216","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-25218","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-6476","title":"An error in QNAME minimization code can cause BIND to exit with an assertion failure","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","status":"published","published":"2019-10-17T19:17:39.24Z","modified":"2024-09-16T16:58:26.06Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:20:23.381621Z"}],"euvd":[{"id":"EUVD-2019-16036","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","status":"published","published":"2019-10-17T19:17:39Z","modified":"2024-09-16T16:58:26Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:55:46.745399Z"}],"ghsa":[{"id":"GHSA-7rr8-wvj2-chhv","title":"A defect in code added to support QNAME minimization can cause named to exit with an assertion...","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","status":"published","published":"2022-05-24T16:59:19Z","modified":"2024-04-04T02:31:16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:56:08.751002Z"}],"nvd":[{"id":"CVE-2019-6476","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. This affects BIND versions 9.14.0 up to 9.14.6, and 9.15.0 up to 9.15.4.","status":"published","published":"2019-10-17T20:15:12.88Z","modified":"2026-06-17T02:39:06.833Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-617"],"updated_at":"2026-11-02T14:05:31.860711Z"}],"osv":[{"id":"ALPINE-CVE-2019-6476","description":"A defect in code added to support QNAME minimization can cause named to exit with an assertion failure if a forwarder returns a referral rather than resolving the query. 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