{"id":"CVE-2009-0858","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-0858","generatedAt":"2026-10-27T17:45:43.617Z","title":"Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via…","description":"The response_addname function in response.c in Daniel J. Bernstein djbdns 1.05 and earlier does not constrain offsets in the required manner, which allows remote attackers, with control over a third-party subdomain served by tinydns and axfrdns, to trigger DNS responses containing arbitrary records via crafted zone data for this subdomain.","published":"2009-03-09T21:30:00.000Z","lastModified":"2026-06-16T23:05:58.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:P"},"cwe":["CWE-20"],"affected":["d.j.bernstein/djbdns"],"epss":{"score":0.06278,"percentile":0.93532,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2009-02-27","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":32825,"kind":"exploit","title":"djbdns 1.05 - Long Response Packet Remote Cache Poisoning","url":"https://www.exploit-db.com/exploits/32825","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/32825.txt","file":"exploits/linux/remote/32825.txt","published":"2009-02-27","added":"2009-02-27","updated":"2014-04-12","author":"Matthew Dempsky","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2009-0858","OSVDB-52699"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/33937/info"}]},"verdict":{"level":"high","text":"A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 6.3%. Treat it as high on anything reachable from the internet."},"changes":[],"references":[{"url":"http://it.slashdot.org/article.pl?sid=09/03/05/2014249","source":"cve@mitre.org"},{"url":"http://marc.info/?l=djbdns&m=123554945710038","source":"cve@mitre.org"},{"url":"http://marc.info/?l=djbdns&m=123613000920446&w=2","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/35820","source":"cve@mitre.org"},{"url":"http://securityandthe.net/2009/03/05/security-issue-in-djbdns-confirmed/","tags":["Patch"],"source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2009/dsa-1831","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/501294/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/501340/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/archive/1/501479/100/0/threaded","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/33937","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/49003","source":"cve@mitre.org"},{"url":"http://it.slashdot.org/article.pl?sid=09/03/05/2014249","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=djbdns&m=123554945710038","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=djbdns&m=123613000920446&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35820","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securityandthe.net/2009/03/05/security-issue-in-djbdns-confirmed/","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2009/dsa-1831","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/501294/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/501340/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/archive/1/501479/100/0/threaded","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/33937","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/49003","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-0858","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}