{"id":"UBUNTU-CVE-2019-25040","details":"Unbound before 1.9.5 allows an infinite loop via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited","modified":"2026-01-30T02:41:38.711468Z","published":"2021-04-27T06:15:00Z","related":["USN-4938-1"],"upstream":["CVE-2019-25040"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-25040"},{"type":"REPORT","url":"https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4938-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-25040"}],"affected":[{"package":{"name":"unbound","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.6.7-1ubuntu2.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.7-1ubuntu2.4"}]}],"versions":["1.6.5-1","1.6.7-1","1.6.7-1build1","1.6.7-1ubuntu1","1.6.7-1ubuntu2","1.6.7-1ubuntu2.1","1.6.7-1ubuntu2.2","1.6.7-1ubuntu2.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound-dev","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"libunbound2","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"python-unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"python3-unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound-anchor","binary_version":"1.6.7-1ubuntu2.4"},{"binary_name":"unbound-host","binary_version":"1.6.7-1ubuntu2.4"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25040.json"}},{"package":{"name":"unbound","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.9.4-2ubuntu1.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.4-2ubuntu1.2"}]}],"versions":["1.9.0-2ubuntu1","1.9.0-2ubuntu2","1.9.4-2","1.9.4-2ubuntu1","1.9.4-2ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound-dev","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"libunbound8","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"python-unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"python3-unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound-anchor","binary_version":"1.9.4-2ubuntu1.2"},{"binary_name":"unbound-host","binary_version":"1.9.4-2ubuntu1.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-25040.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":"Ubuntu","score":"medium"}]}