{"id":"UBUNTU-CVE-2019-14834","details":"A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.","modified":"2026-01-30T02:41:25.746261Z","published":"2020-01-07T17:15:00Z","related":["USN-4698-1","USN-7689-1"],"upstream":["CVE-2019-14834"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-14834"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4698-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-14834"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7689-1"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.68-1ubuntu0.2+esm3?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.68-1ubuntu0.2+esm3"}]}],"versions":["2.66-4ubuntu1","2.67-1","2.68-1","2.68-1ubuntu0.1","2.68-1ubuntu0.2","2.68-1ubuntu0.2+esm1","2.68-1ubuntu0.2+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_name":"dnsmasq","binary_version":"2.68-1ubuntu0.2+esm3"},{"binary_name":"dnsmasq-base","binary_version":"2.68-1ubuntu0.2+esm3"},{"binary_name":"dnsmasq-utils","binary_version":"2.68-1ubuntu0.2+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14834.json"}},{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.75-1ubuntu0.16.04.7?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.75-1ubuntu0.16.04.7"}]}],"versions":["2.75-1","2.75-1ubuntu0.16.04.1","2.75-1ubuntu0.16.04.2","2.75-1ubuntu0.16.04.3","2.75-1ubuntu0.16.04.4","2.75-1ubuntu0.16.04.5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dnsmasq","binary_version":"2.75-1ubuntu0.16.04.7"},{"binary_name":"dnsmasq-base","binary_version":"2.75-1ubuntu0.16.04.7"},{"binary_name":"dnsmasq-utils","binary_version":"2.75-1ubuntu0.16.04.7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14834.json"}},{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.79-1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.79-1ubuntu0.2"}]}],"versions":["2.78-1","2.78-3","2.79-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dnsmasq","binary_version":"2.79-1ubuntu0.2"},{"binary_name":"dnsmasq-base","binary_version":"2.79-1ubuntu0.2"},{"binary_name":"dnsmasq-base-lua","binary_version":"2.79-1ubuntu0.2"},{"binary_name":"dnsmasq-utils","binary_version":"2.79-1ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14834.json"}},{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.80-1.1ubuntu1.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.80-1.1ubuntu1.2"}]}],"versions":["2.80-1ubuntu2","2.80-1ubuntu4","2.80-1.1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"dnsmasq","binary_version":"2.80-1.1ubuntu1.2"},{"binary_name":"dnsmasq-base","binary_version":"2.80-1.1ubuntu1.2"},{"binary_name":"dnsmasq-base-lua","binary_version":"2.80-1.1ubuntu1.2"},{"binary_name":"dnsmasq-utils","binary_version":"2.80-1.1ubuntu1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14834.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"low"}]}