{"id":"CVE-2019-6471","details":"A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -\u003e 9.11.7, 9.12.0 -\u003e 9.12.4-P1, 9.14.0 -\u003e 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -\u003e 9.11.7-S1.","modified":"2026-04-16T04:31:34.855856774Z","published":"2019-10-09T16:15:17.170Z","related":["CGA-fxmp-mccx-5332","SUSE-SU-2019:2502-1","SUSE-SU-2019:2550-1","openSUSE-SU-2019:2263-1","openSUSE-SU-2019:2265-1","openSUSE-SU-2024:10650-1"],"references":[{"type":"WEB","url":"https://support.f5.com/csp/article/K10092301?utm_source=f5support&amp%3Butm_medium=RSS"},{"type":"ADVISORY","url":"https://kb.isc.org/docs/cve-2019-6471"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://gitlab.isc.org/isc-projects/bind9","events":[{"introduced":"0"},{"last_affected":"3adb30769d858ef810add3cf05cc4ca2babb04d9"},{"introduced":"0"},{"last_affected":"3adb30769d858ef810add3cf05cc4ca2babb04d9"},{"introduced":"0"},{"last_affected":"3adb30769d858ef810add3cf05cc4ca2babb04d9"},{"introduced":"0"},{"last_affected":"3adb30769d858ef810add3cf05cc4ca2babb04d9"},{"introduced":"1477c19dd9a347ee19a42dac227f299a4680506f"},{"last_affected":"b8170affaeec0efbbe47d9af220b3347986d5f9f"},{"introduced":"71a40862c0be867999867cd99e21c2266a5e452b"},{"last_affected":"6c8e92c06d2d5b5904c925ca48564a93f1edba44"},{"introduced":"29b3a7d84240a51099490c0f39ae537f4e0d6a7a"},{"last_affected":"6491691ac4bec0dc59e3eeba2797d65527f3bcd6"},{"introduced":"d1e053ed8dff25af8af241cf5ee2c83bd41a25ad"},{"last_affected":"354cf1f66f6f527a8f71f752d9d0bafe55c2155d"},{"introduced":"031bca512d4788356de4cce6f3e61e6b1a878f9c"},{"last_affected":"87676a6ac0dac1fed90b5df9f1289ebb17a41f30"},{"introduced":"0"},{"last_affected":"617639b7cc40ba9eb6fde2d98099726d50da812e"},{"introduced":"0"},{"last_affected":"a953e08740c2d76cd69e3e9515e14544fa3a1dda"},{"introduced":"0"},{"last_affected":"28e45cd00e2e1e621a2e97ba1ee6bdc6a4102e16"},{"introduced":"0"},{"last_affected":"3adb30769d858ef810add3cf05cc4ca2babb04d9"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"9.2.2"},{"introduced":"0"},{"last_affected":"9.2.2"},{"introduced":"0"},{"last_affected":"9.2.2"},{"introduced":"0"},{"last_affected":"9.2.2"},{"introduced":"9.11.0"},{"last_affected":"9.11.7"},{"introduced":"9.12.0"},{"last_affected":"9.12.3"},{"introduced":"9.13.0"},{"last_affected":"9.13.7"},{"introduced":"9.14.0"},{"last_affected":"9.14.2"},{"introduced":"9.15.0"},{"last_affected":"9.15.5"},{"introduced":"0"},{"last_affected":"9.11.3-s1"},{"introduced":"0"},{"last_affected":"9.12.4-NA"},{"introduced":"0"},{"last_affected":"9.12.4-p1"},{"introduced":"0"},{"last_affected":"9.2.2"}]}}],"versions":["v9.10.0a1","v9.10.0a2","v9.10.0b1","v9.10.0b2","v9.10.0rc1","v9.11.0","v9.11.0a1","v9.11.0a2","v9.11.0a3","v9.11.1","v9.11.1b1","v9.11.1rc1","v9.11.1rc2","v9.11.1rc3","v9.11.2b1","v9.11.2rc1","v9.11.3b1","v9.11.3rc1","v9.11.4","v9.11.4rc2","v9.11.6","v9.11.6rc1","v9.11.7","v9.12.0a1","v9.12.0b1","v9.12.0b2","v9.12.0rc1","v9.12.1b1","v9.12.1rc1","v9.12.2","v9.12.2rc2","v9.12.3","v9.12.3rc1","v9.12.4","v9.12.4-P1","v9.12.4rc1","v9.13.0","v9.13.2","v9.13.3","v9.13.4","v9.13.5","v9.13.6","v9.13.7","v9.14.0rc1","v9.14.2","v9.15.0","v9.15.2","v9.15.3","v9.15.4","v9.15.5","v9.2.2","v9.5.0a1","v9.5.0a2","v9.5.0a3","v9.5.0a4","v9.5.0a5","v9.5.0a6","v9.7.0a1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-6471.json","unresolved_ranges":[{"events":[{"introduced":"11.5.2"},{"last_affected":"11.5.9"}]},{"events":[{"introduced":"11.6.1"},{"last_affected":"11.6.4"}]},{"events":[{"introduced":"12.1.0"},{"last_affected":"12.1.4"}]},{"events":[{"introduced":"13.1.0"},{"last_affected":"13.1.1"}]},{"events":[{"introduced":"0"},{"last_affected":"14.0.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.1.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0.0"}]},{"events":[{"introduced":"11.5.2"},{"last_affected":"11.5.9"}]},{"events":[{"introduced":"11.6.1"},{"last_affected":"11.6.4"}]},{"events":[{"introduced":"12.1.0"},{"last_affected":"12.1.4"}]},{"events":[{"introduced":"13.1.0"},{"last_affected":"13.1.1"}]},{"events":[{"introduced":"0"},{"last_affected":"14.0.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.1.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0.0"}]},{"events":[{"introduced":"11.5.2"},{"last_affected":"11.5.9"}]},{"events":[{"introduced":"11.6.1"},{"last_affected":"11.6.4"}]},{"events":[{"introduced":"12.1.0"},{"last_affected":"12.1.4"}]},{"events":[{"introduced":"13.1.0"},{"last_affected":"13.1.1"}]},{"events":[{"introduced":"0"},{"last_affected":"14.0.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.1.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0.0"}]},{"events":[{"introduced":"11.5.2"},{"last_affected":"11.5.9"}]},{"events":[{"introduced":"11.6.1"},{"last_affected":"11.6.4"}]},{"events":[{"introduced":"12.1.0"},{"last_affected":"12.1.4"}]},{"events":[{"introduced":"13.1.0"},{"last_affected":"13.1.1"}]},{"events":[{"introduced":"0"},{"last_affected":"14.0.0"}]},{"events":[{"introduced":"0"},{"last_affected":"14.1.0"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0.0"}]},{"events":[{"introduced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