{"id":"UBUNTU-CVE-2023-22617","details":"A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.","modified":"2025-10-24T05:01:46Z","published":"2023-01-21T19:15:00Z","upstream":["CVE-2023-22617"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-22617"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2023/01/20/1"},{"type":"REPORT","url":"https://downloads.powerdns.com/patches/2023-01/"},{"type":"REPORT","url":"https://github.com/PowerDNS/pdns/pull/12442"},{"type":"REPORT","url":"https://docs.powerdns.com/recursor/changelog/4.8.html#change-4.8.1"},{"type":"REPORT","url":"https://docs.powerdns.com/recursor/security-advisories/"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2023/01/20/1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-22617"}],"affected":[{"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/2023/UBUNTU-CVE-2023-22617.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/pdns-recursor@4.1.1-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.6-1","4.0.6-1build1","4.0.7-1","4.1.1-1","4.1.1-1build1","4.1.1-2","4.1.1-2ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"pdns-recursor","binary_version":"4.1.1-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22617.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/pdns-recursor@4.2.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.0-6","4.2.1-1","4.2.1-1build1","4.2.1-1build2","4.2.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"pdns-recursor","binary_version":"4.2.1-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22617.json"}},{"package":{"name":"pdns-recursor","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/pdns-recursor@4.6.0-1ubuntu1+esm1?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.2-3","4.6.0-1ubuntu1","4.6.0-1ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"pdns-recursor","binary_version":"4.6.0-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-22617.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"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}