{"id":"USN-3430-1","summary":"dnsmasq vulnerabilities","details":"Felix 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)\n","modified":"2026-02-10T04:41:12Z","published":"2017-10-02T14:09:38Z","related":["UBUNTU-CVE-2017-14491","UBUNTU-CVE-2017-14492","UBUNTU-CVE-2017-14493","UBUNTU-CVE-2017-14494","UBUNTU-CVE-2017-14495","UBUNTU-CVE-2017-14496"],"upstream":["CVE-2017-14491","CVE-2017-14492","CVE-2017-14493","CVE-2017-14494","CVE-2017-14495","CVE-2017-14496","UBUNTU-CVE-2017-14491","UBUNTU-CVE-2017-14492","UBUNTU-CVE-2017-14493","UBUNTU-CVE-2017-14494","UBUNTU-CVE-2017-14495","UBUNTU-CVE-2017-14496"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3430-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14491"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14492"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14493"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14494"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14495"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-14496"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.68-1ubuntu0.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.68-1ubuntu0.2"}]}],"versions":["2.66-4ubuntu1","2.67-1","2.68-1","2.68-1ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dnsmasq","binary_version":"2.68-1ubuntu0.2"},{"binary_name":"dnsmasq-base","binary_version":"2.68-1ubuntu0.2"},{"binary_name":"dnsmasq-utils","binary_version":"2.68-1ubuntu0.2"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14491"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14492"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14493"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14494"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14495"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14496"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3430-1.json"}},{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.75-1ubuntu0.16.04.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.75-1ubuntu0.16.04.3"}]}],"versions":["2.75-1","2.75-1ubuntu0.16.04.1","2.75-1ubuntu0.16.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dnsmasq","binary_version":"2.75-1ubuntu0.16.04.3"},{"binary_name":"dnsmasq-base","binary_version":"2.75-1ubuntu0.16.04.3"},{"binary_name":"dnsmasq-utils","binary_version":"2.75-1ubuntu0.16.04.3"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14491"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14492"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}],"id":"CVE-2017-14493"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14494"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14495"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2017-14496"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3430-1.json"}}],"schema_version":"1.7.3"}