{"id":"UBUNTU-CVE-2021-25215","details":"In BIND 9.0.0 -\u003e 9.11.29, 9.12.0 -\u003e 9.16.13, and versions BIND 9.9.3-S1 -\u003e 9.11.29-S1 and 9.16.8-S1 -\u003e 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.","modified":"2026-04-22T12:49:29.919176Z","published":"2021-04-28T00:00:00Z","related":["USN-4929-1","USN-7739-1"],"upstream":["CVE-2021-25215"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-25215"},{"type":"REPORT","url":"https://kb.isc.org/docs/cve-2021-25215"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4929-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-25215"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7739-1"}],"affected":[{"package":{"name":"bind9","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.9.5.dfsg-3ubuntu0.19+esm13?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.9.5.dfsg-3ubuntu0.19+esm13"}]}],"versions":["1:9.9.3.dfsg.P2-4ubuntu1","1:9.9.3.dfsg.P2-4ubuntu2","1:9.9.3.dfsg.P2-4ubuntu3","1:9.9.5.dfsg-2","1:9.9.5.dfsg-3","1:9.9.5.dfsg-3ubuntu0.1","1:9.9.5.dfsg-3ubuntu0.2","1:9.9.5.dfsg-3ubuntu0.3","1:9.9.5.dfsg-3ubuntu0.4","1:9.9.5.dfsg-3ubuntu0.5","1:9.9.5.dfsg-3ubuntu0.6","1:9.9.5.dfsg-3ubuntu0.7","1:9.9.5.dfsg-3ubuntu0.8","1:9.9.5.dfsg-3ubuntu0.9","1:9.9.5.dfsg-3ubuntu0.10","1:9.9.5.dfsg-3ubuntu0.11","1:9.9.5.dfsg-3ubuntu0.12","1:9.9.5.dfsg-3ubuntu0.13","1:9.9.5.dfsg-3ubuntu0.14","1:9.9.5.dfsg-3ubuntu0.15","1:9.9.5.dfsg-3ubuntu0.16","1:9.9.5.dfsg-3ubuntu0.17","1:9.9.5.dfsg-3ubuntu0.18","1:9.9.5.dfsg-3ubuntu0.19","1:9.9.5.dfsg-3ubuntu0.19+esm1","1:9.9.5.dfsg-3ubuntu0.19+esm2","1:9.9.5.dfsg-3ubuntu0.19+esm3","1:9.9.5.dfsg-3ubuntu0.19+esm4","1:9.9.5.dfsg-3ubuntu0.19+esm5","1:9.9.5.dfsg-3ubuntu0.19+esm6","1:9.9.5.dfsg-3ubuntu0.19+esm7","1:9.9.5.dfsg-3ubuntu0.19+esm9","1:9.9.5.dfsg-3ubuntu0.19+esm10","1:9.9.5.dfsg-3ubuntu0.19+esm11","1:9.9.5.dfsg-3ubuntu0.19+esm12"],"ecosystem_specific":{"availability":"Available 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