{"id":"UBUNTU-CVE-2017-15105","details":"A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.","modified":"2026-01-30T02:27:03.831292Z","published":"2018-01-23T00:00:00Z","related":["USN-3673-1"],"upstream":["CVE-2017-15105"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-15105"},{"type":"REPORT","url":"https://unbound.net/downloads/CVE-2017-15105.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3673-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-15105"}],"affected":[{"package":{"name":"unbound","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.4.22-1ubuntu4.14.04.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.22-1ubuntu4.14.04.3"}]}],"versions":["1.4.20-1","1.4.21-1","1.4.21-1ubuntu1","1.4.21-1ubuntu2","1.4.22-1ubuntu1","1.4.22-1ubuntu2","1.4.22-1ubuntu3","1.4.22-1ubuntu4","1.4.22-1ubuntu4.14.04.1","1.4.22-1ubuntu4.14.04.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound-dev","binary_version":"1.4.22-1ubuntu4.14.04.3"},{"binary_name":"libunbound2","binary_version":"1.4.22-1ubuntu4.14.04.3"},{"binary_name":"python-unbound","binary_version":"1.4.22-1ubuntu4.14.04.3"},{"binary_name":"unbound","binary_version":"1.4.22-1ubuntu4.14.04.3"},{"binary_name":"unbound-anchor","binary_version":"1.4.22-1ubuntu4.14.04.3"},{"binary_name":"unbound-host","binary_version":"1.4.22-1ubuntu4.14.04.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15105.json"}},{"package":{"name":"unbound","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.5.8-1ubuntu1.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.8-1ubuntu1.1"}]}],"versions":["1.4.22-1ubuntu6","1.5.7-1ubuntu1","1.5.7-1ubuntu2","1.5.8-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound-dev","binary_version":"1.5.8-1ubuntu1.1"},{"binary_name":"libunbound2","binary_version":"1.5.8-1ubuntu1.1"},{"binary_name":"python-unbound","binary_version":"1.5.8-1ubuntu1.1"},{"binary_name":"unbound","binary_version":"1.5.8-1ubuntu1.1"},{"binary_name":"unbound-anchor","binary_version":"1.5.8-1ubuntu1.1"},{"binary_name":"unbound-host","binary_version":"1.5.8-1ubuntu1.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15105.json"}},{"package":{"name":"unbound","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.6.7-1ubuntu2.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.7-1ubuntu2.1"}]}],"versions":["1.6.5-1","1.6.7-1","1.6.7-1build1","1.6.7-1ubuntu1","1.6.7-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound-dev","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"libunbound2","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"python-unbound","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"python3-unbound","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"unbound","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"unbound-anchor","binary_version":"1.6.7-1ubuntu2.1"},{"binary_name":"unbound-host","binary_version":"1.6.7-1ubuntu2.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-15105.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},{"type":"Ubuntu","score":"low"}]}