{"id":"CVE-2006-4252","aliases":["DEBIAN-CVE-2006-4252","EUVD-2006-4240","GHSA-mx38-c6fm-chc9"],"status":"published","title":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service ...","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05967,"percentile":0.93341,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2006-11-14T20:00:00Z","modified":"2026-10-22T23:47:27Z","fixes":[{"ecosystem":"Debian:12","package":"pdns-recursor","fixed_in":["3.1.4-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pdns-recursor","fixed_in":["3.1.4-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"pdns-recursor","fixed_in":["3.1.4-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"pdns-recursor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.4-1"}]}]}],"products":[{"vendor":"powerdns","product":"recursor"}],"references":[{"url":"http://www.vupen.com/english/advisories/2006/4484","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://doc.powerdns.com/powerdns-advisory-2006-02.html","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://secunia.com/advisories/22824","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/30257","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://lists.suse.com/archive/suse-security-announce/2006-Nov/0007.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/21037","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","fix"]},{"url":"http://secunia.com/advisories/22976","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-4252"},{"url":"https://github.com/advisories/GHSA-mx38-c6fm-chc9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2006-4252","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2006-4252","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2006-11-14T20:00:00Z","modified":"2024-08-07T19:06:06.841Z","updated_at":"2026-11-02T14:33:51.085765Z"}],"euvd":[{"id":"EUVD-2006-4240","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2006-11-14T20:00:00Z","modified":"2024-08-07T19:06:06Z","updated_at":"2026-11-03T01:15:52.657645Z"}],"ghsa":[{"id":"GHSA-mx38-c6fm-chc9","title":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service ...","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2022-05-01T07:16:58Z","modified":"2023-01-31T05:01:52Z","updated_at":"2026-11-02T14:48:09.208669Z"}],"nvd":[{"id":"CVE-2006-4252","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2006-11-14T20:07:00Z","modified":"2026-06-16T22:28:43.157Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:08.546281Z"}],"osv":[{"id":"CVE-2006-4252","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2006-11-14T20:07:00Z","modified":"2026-04-10T03:37:44.284485Z","updated_at":"2026-11-02T15:43:56.865964Z"},{"id":"DEBIAN-CVE-2006-4252","description":"PowerDNS Recursor 3.1.3 and earlier allows remote attackers to cause a denial of service (resource exhaustion and application crash) via a CNAME record with a zero TTL, which triggers an infinite loop.","status":"published","published":"2006-11-14T20:07:00Z","modified":"2026-10-22T23:47:27.78542695Z","updated_at":"2026-11-02T15:45:23.105674Z"}]}}