{"id":"USN-3673-1","summary":"unbound vulnerability","details":"Ralph Dolmans and Karst Koymans discovered that Unbound did not properly\nhandle certain NSEC records. An attacker could use this to to prove the\nnon-existence (NXDOMAIN answer) of an existing wildcard record, or trick\nUnbound into accepting a NODATA proof.\n","modified":"2026-02-10T04:41:21Z","published":"2018-06-07T22:21:42Z","related":["UBUNTU-CVE-2017-15105"],"upstream":["CVE-2017-15105","UBUNTU-CVE-2017-15105"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3673-1"},{"type":"REPORT","url":"https://ubuntu.com/security/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":{"availability":"No subscription required","binaries":[{"binary_version":"1.4.22-1ubuntu4.14.04.3","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3673-1.json","cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"id":"CVE-2017-15105","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}},{"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":{"availability":"No subscription required","binaries":[{"binary_version":"1.5.8-1ubuntu1.1","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3673-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2017-15105","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}},{"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":{"availability":"No subscription required","binaries":[{"binary_version":"1.6.7-1ubuntu2.1","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"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3673-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2017-15105","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}