{"id":"UBUNTU-CVE-2015-5470","details":"The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.","modified":"2025-09-08T16:43:26Z","published":"2015-11-02T19:59:00Z","upstream":["CVE-2015-5470"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-5470"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2015/07/07/6"},{"type":"REPORT","url":"https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/"},{"type":"REPORT","url":"http://downloads.powerdns.com/patches/2015-01/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-5470"}],"affected":[{"package":{"name":"pdns-recursor","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/pdns-recursor@3.5.3-1ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.3-1ubuntu0.1"}]}],"versions":["3.3-3","3.5.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"pdns-recursor","binary_version":"3.5.3-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-5470.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"low"}]}