{"id":"UBUNTU-CVE-2016-7073","details":"An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check of the TSIG time and fudge values was found in AXFRRetriever, leading to a possible replay attack.","modified":"2025-09-08T16:43:50Z","published":"2018-09-11T13:29:00Z","upstream":["CVE-2016-7073"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7073"},{"type":"REPORT","url":"https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7073"}],"affected":[{"package":{"name":"pdns","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pdns@4.0.0~alpha2-3ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.4.5-1build2","3.4.6-2","3.4.6-3","3.4.7-1","3.4.7-2","4.0.0~alpha1-1","4.0.0~alpha2-2","4.0.0~alpha2-3","4.0.0~alpha2-3build1","4.0.0~alpha2-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-geoip"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-ldap"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-lua"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-mydns"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-mysql"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-pgsql"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-pipe"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-remote"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-sqlite3"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-backend-tinydns"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-server"},{"binary_version":"4.0.0~alpha2-3ubuntu0.1~esm1","binary_name":"pdns-tools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7073.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pdns-recursor@4.0.0~alpha2-2ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.3-1","4.0.0~alpha1-1","4.0.0~alpha1-2","4.0.0~alpha2-2","4.0.0~alpha2-2ubuntu0.1","4.0.0~alpha2-2ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.0~alpha2-2ubuntu0.1+esm1","binary_name":"pdns-recursor"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7073.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":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}