{"id":"UBUNTU-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":"2026-02-04T04:07:18.216768Z","published":"2019-06-19T00:00:00Z","related":["USN-4026-1"],"upstream":["CVE-2019-6471"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-6471"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4026-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-6471"}],"affected":[{"package":{"name":"bind9","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/bind9@1:9.11.3+dfsg-1ubuntu1.8?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.11.3+dfsg-1ubuntu1.8"}]}],"versions":["1:9.10.3.dfsg.P4-12.6ubuntu1","1:9.11.2.P1-1ubuntu2","1:9.11.2.P1-1ubuntu3","1:9.11.2.P1-1ubuntu4","1:9.11.2.P1-1ubuntu5","1:9.11.3+dfsg-1ubuntu1","1:9.11.3+dfsg-1ubuntu1.1","1:9.11.3+dfsg-1ubuntu1.2","1:9.11.3+dfsg-1ubuntu1.3","1:9.11.3+dfsg-1ubuntu1.5","1:9.11.3+dfsg-1ubuntu1.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"bind9","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"bind9-host","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"bind9utils","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"dnsutils","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libbind-dev","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libbind-export-dev","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libbind9-160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libdns-export1100","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libdns1100","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libirs-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libirs160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisc-export169","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisc169","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisccc-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisccc160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisccfg-export160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"libisccfg160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"},{"binary_name":"liblwres160","binary_version":"1:9.11.3+dfsg-1ubuntu1.8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-6471.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}