{"schemaVersion":3,"id":"USN-3430-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"dnsmasq vulnerabilities\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote attacker\ncould use this issue to cause Dnsmasq to crash, resulting in a denial of\nservice, or possibly execute arbitrary code. (CVE-2017-14491)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled IPv6 router advertisements. A\nremote attacker could use this issue to cause Dnsmasq to crash, resulting\nin a denial of service, or possibly execute arbitrary code.\n(CVE-2017-14492)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 requests. A remote\nattacker could use this issue to cause Dnsmasq to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. (CVE-2017-14493)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DHCPv6 packets. A remote\nattacker could use this issue to possibly obtain sensitive memory contents.\n(CVE-2017-14494)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote attacker\ncould use this issue to cause Dnsmasq to consume memory, resulting in a\ndenial of service. (CVE-2017-14495)\n\nFelix Wilhelm, Fermin J. Serna, Gabriel Campana and Kevin Hamacher\ndiscovered that Dnsmasq incorrectly handled DNS requests. A remote attacker\ncould use this issue to cause Dnsmasq to crash, resulting in a denial of\nservice. (CVE-2017-14496)","dates":{"published":"2017-10-02T14:09:38.000Z","modified":"2026-02-10T04:41:12.000Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"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":[],"affected":[{"vendor":"ubuntu","product":"dnsmasq","name":"dnsmasq","label":"dnsmasq","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/dnsmasq","purlType":"deb","versions":[{"text":"< 2.68-1ubuntu0.2","noFixRecorded":false,"fixedIn":null},{"text":"< 2.75-1ubuntu0.16.04.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.68-1ubuntu0.2 | < 2.75-1ubuntu0.16.04.3","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3430-1","label":"ubuntu.com/security/notices/USN-3430-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-14491","label":"ubuntu.com/security/CVE-2017-14491","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-14492","label":"ubuntu.com/security/CVE-2017-14492","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-14493","label":"ubuntu.com/security/CVE-2017-14493","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-14494","label":"ubuntu.com/security/CVE-2017-14494","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-14495","label":"ubuntu.com/security/CVE-2017-14495","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-14496","label":"ubuntu.com/security/CVE-2017-14496","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2017-14491","CVE-2017-14492","CVE-2017-14493","CVE-2017-14494","CVE-2017-14495","CVE-2017-14496"],"downstream":[],"duplicates":[],"related":["CVE-2017-14491","CVE-2017-14492","CVE-2017-14493","CVE-2017-14494","CVE-2017-14495","CVE-2017-14496"]},"timeline":[{"kind":"published","date":"2017-10-02T14:09:38.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:12.000Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T06:13:54.535Z","stale":false,"partial":false}}