{"schemaVersion":3,"id":"CVE-2009-1086","aliases":["DEBIAN-CVE-2009-1086","DSA-1795-1"],"status":"published","duplicateOf":null,"title":null,"description":"Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns 1.4.x allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a DNS resource record (RR) with a long (1) class field (clas variable) and possibly (2) TTL field.","dates":{"published":"2009-03-25T18:00:00.000Z","modified":"2024-08-07T04:57:17.916Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.4,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.4,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.03473,"percentile":0.88939,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.03473},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03473,"percentile":0.88939}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.03473,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.03473,"percentile":0.88939}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-399","name":"Resource Management Errors","description":"Weaknesses in this category are related to improper management of system resources.","type":"category","status":"Draft","abstraction":null,"likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/399.html"}],"affected":[{"vendor":"debian","product":"ldns","name":"ldns","label":"ldns","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/ldns","purlType":"deb","versions":[{"text":"< 1.5.1-1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.4.0-1+lenny1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.5.1-1 | < 1.4.0-1+lenny1","eol":null,"hubHref":null},{"vendor":"nlnetlabs","product":"ldns","name":"ldns","label":"ldns","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"1.4.0","noFixRecorded":false,"fixedIn":null},{"text":"1.4.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"1.4.0 | 1.4.1","eol":null,"hubHref":"/vendor/nlnetlabs/ldns"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://secunia.com/advisories/35013","label":"secunia.com/advisories/35013","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://www.openwall.com/lists/oss-security/2009/03/24/4","label":"www.openwall.com/lists/oss-security/2009/03/24/4","hostname":"www.openwall.com","tags":["Mailing List","X Refsource MLIST"]},{"url":"http://www.securityfocus.com/bid/34233","label":"www.securityfocus.com/bid/34233","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID"]},{"url":"http://www.nlnetlabs.nl/svn/ldns/tags/release-1.5.0/Changelog","label":"www.nlnetlabs.nl/svn/ldns/tags/release-1.5.0/Changelog","hostname":"www.nlnetlabs.nl","tags":["X Refsource CONFIRM"]},{"url":"http://secunia.com/advisories/35065","label":"secunia.com/advisories/35065","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://www.nlnetlabs.nl/bugs/show_bug.cgi?id=232","label":"www.nlnetlabs.nl/bugs/show_bug.cgi?id=232","hostname":"www.nlnetlabs.nl","tags":["X Refsource MISC"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","label":"lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE"]},{"url":"http://www.debian.org/security/2009/dsa-1795","label":"www.debian.org/security/2009/dsa-1795","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-1086","label":"security-tracker.debian.org/tracker/CVE-2009-1086","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2009-03-25T18:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-07T04:57:17.916Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T11:37:25.696Z","stale":false,"partial":false}}