{"id":"UBUNTU-CVE-2020-24697","details":"An issue was discovered in PowerDNS Authoritative through 4.3.0 when --enable-experimental-gss-tsig is used. A remote, unauthenticated attacker can cause a denial of service by sending crafted queries with a GSS-TSIG signature.","modified":"2026-01-30T01:12:32.277450Z","published":"2020-10-02T09:15:00Z","withdrawn":"2025-06-23T15:53:44Z","related":["CVE-2020-24697"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-24697"},{"type":"REPORT","url":"https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2020-06.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-24697"}],"affected":[{"package":{"name":"pdns","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pdns?arch=src?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"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}},{"package":{"name":"pdns","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/pdns?arch=src?distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.4-2","4.0.4-2build1","4.0.5-1","4.1.0-1","4.1.0-2","4.1.0-2build1","4.1.1-1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}},{"package":{"name":"pdns","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pdns?arch=src?distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.6-3build1","4.2.0-1","4.2.1-1","4.2.1-1build1","4.2.1-1build2"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}},{"package":{"name":"pdns","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pdns?arch=src?distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.1-1build1","4.4.1-3","4.4.1-4","4.5.2-1build1","4.5.3-1"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}},{"package":{"name":"pdns","ecosystem":"Ubuntu:24.10","purl":"pkg:deb/ubuntu/pdns?arch=src?distro=oracular"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.3-4build3","4.9.0-2","4.9.1-1","4.9.1-2","4.9.1-3"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}},{"package":{"name":"pdns","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pdns?arch=src?distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.1-1build1","4.8.3-2","4.8.3-2build1","4.8.3-3","4.8.3-4","4.8.3-4build2","4.8.3-4build3"],"ecosystem_specific":{"ubuntu_priority":"medium"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-24697.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}