{"id":"CVE-2016-7074","aliases":["DEBIAN-CVE-2016-7074","DLA-798-1","DSA-3764-1","EUVD-2016-7954","GHSA-pwxm-qc32-g74q","MGASA-2017-0033","UBUNTU-CVE-2016-7074"],"status":"published","title":"An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4,...","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","severity":{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.01222,"percentile":0.68915,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2017-01-13T00:00:00Z","modified":"2026-10-24T10:30:55Z","fixes":[{"ecosystem":"Debian:12","package":"pdns","fixed_in":["4.0.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pdns","fixed_in":["4.0.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"pdns","fixed_in":["4.0.2-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"pdns-recursor","fixed_in":["4.0.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pdns-recursor","fixed_in":["4.0.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"pdns-recursor","fixed_in":["4.0.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.2-1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.4-1"}]}]},{"source":"osv","ecosystem":"Debian:7","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1-4.1+deb7u3"}]}],"versions":["3.1-4","3.1-4.1","3.1-4.1+deb7u1","3.1-4.1+deb7u2"],"bundled":5},{"source":"osv","ecosystem":"Debian:8","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1-4+deb8u7"}]}],"versions":["3.4.1-4","3.4.1-4+deb8u1","3.4.1-4+deb8u1~bpo70+1","3.4.1-4+deb8u2","3.4.1-4+deb8u3","3.4.1-4+deb8u4","3.4.1-4+deb8u5","3.4.1-4+deb8u6"],"bundled":5},{"source":"osv","ecosystem":"Mageia:5","package":"pdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-1.3.mga5"}]}],"bundled":5},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"pdns","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"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"pdns-recursor","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"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"debian","product":"pdns"},{"vendor":"open-xchange","product":"pdns"},{"vendor":"powerdns","product":"authoritative"},{"vendor":"powerdns","product":"recursor"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7074","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://www.debian.org/security/2017/dsa-3764","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://doc.powerdns.com/md/security/powerdns-advisory-2016-04/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7074"},{"url":"https://github.com/advisories/GHSA-pwxm-qc32-g74q"},{"url":"https://security-tracker.debian.org/tracker/CVE-2016-7074","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2017-0033.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=20126","tags":["report"]},{"url":"https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/","tags":["web"]},{"url":"https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/","tags":["web"]},{"url":"https://doc.powerdns.com/md/security/powerdns-advisory-2016-05/","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2016-7074","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-7074","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-7074","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:00:00Z","modified":"2024-08-06T01:50:47.469Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:36.483151Z"}],"euvd":[{"id":"EUVD-2016-7954","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:00:00Z","modified":"2024-08-06T01:50:47Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T02:22:34.032839Z"}],"ghsa":[{"id":"GHSA-pwxm-qc32-g74q","title":"An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4,...","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2022-05-13T01:38:41Z","modified":"2023-02-01T05:09:15Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:50:56.168791Z"}],"nvd":[{"id":"CVE-2016-7074","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:29:01.167Z","modified":"2026-06-17T00:52:32.723Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:39.621168Z"}],"osv":[{"id":"CVE-2016-7074","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:29:01.167Z","modified":"2026-10-24T10:30:55.309215836Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:02.776224Z"},{"id":"DEBIAN-CVE-2016-7074","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:29:01.167Z","modified":"2026-09-22T07:02:09.763873701Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:27.910042Z"},{"id":"UBUNTU-CVE-2016-7074","description":"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 that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.","status":"published","published":"2018-09-11T13:29:00Z","modified":"2025-09-08T16:43:50Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"},{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:12.642042Z"},{"id":"DLA-798-1","title":"pdns - security update","status":"published","published":"2017-01-25T00:00:00Z","modified":"2026-03-09T02:10:24.327657Z","updated_at":"2026-11-02T15:46:13.207219Z"},{"id":"DSA-3764-1","title":"pdns - security update","status":"published","published":"2017-01-13T00:00:00Z","modified":"2026-03-09T01:23:38.424677Z","updated_at":"2026-11-02T15:46:16.523846Z"},{"id":"MGASA-2017-0033","title":"Updated pdns packages fix security vulnerabilities","description":"Mathieu Lafon discovered that pdns does not properly validate records\nin zones. An authorized user can take advantage of this flaw to crash\nserver by inserting a specially crafted record in a zone under their\ncontrol and then sending a DNS query for that record (CVE-2016-2120).\n\nFlorian Heinz and Martin Kluge reported that pdns parses all records\npresent in a query regardless of whether they are needed or even\nlegitimate, allowing a remote, unauthenticated attacker to cause an\nabnormal CPU usage load on the pdns server, resulting in a partial\ndenial of service if the system becomes overloaded (CVE-2016-7068).\n\nMongo discovered that the webserver in pdns is susceptible to a\ndenial-of-service vulnerability. A remote, unauthenticated attacker to\ncause a denial of service by opening a large number of f TCP\nconnections to the web server (CVE-2016-7072).\n\nMongo discovered that pdns does not sufficiently validate TSIG\nsignatures, allowing an attacker in position of man-in-the-middle to\nalter the content of an AXFR (CVE-2016-7073, CVE-2016-7074).\n","status":"published","published":"2017-02-02T08:11:52Z","modified":"2026-04-16T06:23:45.973195639Z","updated_at":"2026-11-02T15:49:40.103088Z"}]}}