{"id":"CVE-2017-9430","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-9430","generatedAt":"2026-10-29T03:02:11.232Z","title":"Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0].","description":"Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.","published":"2017-06-05T11:29:00.000Z","lastModified":"2026-06-17T01:28:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["dnstracer project/dnstracer"],"epss":{"score":0.11411,"percentile":0.95976,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.07822,"percentile":0.94494},{"date":"2026-09-22","score":0.1132,"percentile":0.95783}]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2017-06-05","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42424,"kind":"exploit","title":"DNSTracer 1.9 - Local Buffer Overflow","url":"https://www.exploit-db.com/exploits/42424","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/42424.py","file":"exploits/linux/local/42424.py","published":"2017-08-03","added":"2017-08-03","updated":"2017-08-03","author":"j0lama","type":"local","platform":"linux","port":null,"verified":false,"codes":["CVE-2017-9430"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comdnstracer-1.9.tar.gz","screenshotUrl":null,"referenceUrl":null},{"edbId":42115,"kind":"exploit","title":"DNSTracer 1.8.1 - Buffer Overflow (PoC)","url":"https://www.exploit-db.com/exploits/42115","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/dos/42115.txt","file":"exploits/linux/dos/42115.txt","published":"2017-06-05","added":"2017-06-05","updated":"2017-08-03","author":"FarazPajohan","type":"dos","platform":"linux","port":null,"verified":true,"codes":["CVE-2017-9430"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comdnstracer_1.9-5_amd64.deb","screenshotUrl":"http://www.exploit-db.com/screenshots/idlt42500/screen-shot-2017-06-05-at-094005.png","referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.1132,"from":0.07822,"percentile":0.95783},"summary":"EPSS moved from 7.8% to 11.3% probability of exploitation in the next thirty days."}],"references":[{"url":"https://cxsecurity.com/issue/WLB-2017060030","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://packetstormsecurity.com/files/142799/DNSTracer-1.8.1-Buffer-Overflow.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/42115/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/42424/","source":"cve@mitre.org"},{"url":"https://cxsecurity.com/issue/WLB-2017060030","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://packetstormsecurity.com/files/142799/DNSTracer-1.8.1-Buffer-Overflow.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42115/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42424/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-9430","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."}