{"id":"UBUNTU-CVE-2014-8602","details":"iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals.","modified":"2026-04-22T09:37:35.549963Z","published":"2014-12-10T00:00:00Z","related":["USN-2484-1"],"upstream":["CVE-2014-8602"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-8602"},{"type":"REPORT","url":"http://www.unbound.net/pipermail/unbound-users/2014-December/003662.html"},{"type":"REPORT","url":"https://unbound.net/downloads/CVE-2014-8602.txt"},{"type":"REPORT","url":"http://unbound.net/downloads/patch_cve_2014_8602.diff"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2484-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2014-8602"}],"affected":[{"package":{"name":"unbound","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/unbound@1.4.22-1ubuntu4.14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.22-1ubuntu4.14.04.1"}]}],"versions":["1.4.20-1","1.4.21-1","1.4.21-1ubuntu1","1.4.21-1ubuntu2","1.4.22-1ubuntu1","1.4.22-1ubuntu2","1.4.22-1ubuntu3","1.4.22-1ubuntu4"],"ecosystem_specific":{"binaries":[{"binary_name":"libunbound2","binary_version":"1.4.22-1ubuntu4.14.04.1"},{"binary_name":"python-unbound","binary_version":"1.4.22-1ubuntu4.14.04.1"},{"binary_name":"unbound","binary_version":"1.4.22-1ubuntu4.14.04.1"},{"binary_name":"unbound-anchor","binary_version":"1.4.22-1ubuntu4.14.04.1"},{"binary_name":"unbound-host","binary_version":"1.4.22-1ubuntu4.14.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2014/UBUNTU-CVE-2014-8602.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}