{"id":"CVE-2019-25591","aliases":["EUVD-2019-19924","GHSA-cc43-7p79-8wx6","UBUNTU-CVE-2019-25591"],"status":"published","title":"DNSS Domain Name Search Software 2.1.8 Denial of Service","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.0019,"percentile":0.08739,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-03-22T13:38:29Z","modified":"2026-10-17T12:56:08Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20170810.0.860d2af1-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20180721.0.2de63ab0-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20200927.0.6aad832e-2","0.0~git20200927.0.6aad832e-2build1","0.0~git20200927.0.6aad832e-2ubuntu0.1","0.0~git20200927.0.6aad832e-2ubuntu0.2","0.0~git20200927.0.6aad832e-2ubuntu0.3","0.0~git20200927.0.6aad832e-2ubuntu0.3+esm1","0.0~git20200927.0.6aad832e-2ubuntu0.3+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~git20230806.0.38ca607c-1build1","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.1","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.2","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.2+esm1","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm1","0.0~git20230806.0.38ca607c-1ubuntu0.24.04.3+esm2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0-1build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"dnss","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0-1","0.1.0-1build1"]}],"products":[{"vendor":"nsauditor","product":"dnss domain name search software"}],"references":[{"url":"https://www.exploit-db.com/exploits/46831","tags":["exploit","report"]},{"url":"http://www.nsauditor.com/downloads/dnss_setup.exe","tags":["product","report"]},{"url":"https://www.vulncheck.com/advisories/dnss-domain-name-search-software-denial-of-service","tags":["third-party-advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-25591"},{"url":"https://github.com/advisories/GHSA-cc43-7p79-8wx6"},{"url":"https://ubuntu.com/security/CVE-2019-25591","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-25591","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-25591","title":"DNSS Domain Name Search Software 2.1.8 Denial of Service","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","status":"published","published":"2026-03-22T13:38:29.521Z","modified":"2026-03-24T14:38:35.595Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:20:19.399352Z"}],"euvd":[{"id":"EUVD-2019-19924","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","status":"published","published":"2026-03-22T13:38:29Z","modified":"2026-03-24T14:38:35Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:25:30.317985Z"}],"ghsa":[{"id":"GHSA-cc43-7p79-8wx6","title":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the...","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","status":"published","published":"2026-03-22T15:31:28Z","modified":"2026-03-22T15:31:34Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:06:47.173687Z"}],"nvd":[{"id":"CVE-2019-25591","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","status":"published","published":"2026-03-22T14:16:25.633Z","modified":"2026-06-17T02:32:45.18Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:05:49.934131Z"}],"osv":[{"id":"UBUNTU-CVE-2019-25591","description":"DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.","status":"published","published":"2026-03-22T14:16:00Z","modified":"2026-10-17T12:56:08.49580039Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T15:54:21.213407Z"}]}}