{"id":"USN-4924-1","summary":"dnsmasq vulnerabilities","details":"It was discovered that Dnsmasq incorrectly handled certain wildcard\nsynthesized NSEC records. A remote attacker could possibly use this issue\nto prove the non-existence of hostnames that actually exist.\n(CVE-2017-15107)\n\nIt was discovered that Dnsmasq incorrectly handled certain large DNS\npackets. A remote attacker could possibly use this issue to cause Dnsmasq\nto crash, resulting in a denial of service. (CVE-2019-14513)\n","modified":"2026-02-10T04:42:09Z","published":"2021-04-22T16:59:05Z","related":["UBUNTU-CVE-2017-15107","UBUNTU-CVE-2019-14513"],"upstream":["CVE-2017-15107","CVE-2019-14513","UBUNTU-CVE-2017-15107","UBUNTU-CVE-2019-14513"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4924-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-15107"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-14513"}],"affected":[{"package":{"name":"dnsmasq","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dnsmasq@2.75-1ubuntu0.16.04.10?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.75-1ubuntu0.16.04.10"}]}],"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","2.75-1ubuntu0.16.04.7","2.75-1ubuntu0.16.04.8"],"ecosystem_specific":{"binaries":[{"binary_version":"2.75-1ubuntu0.16.04.10","binary_name":"dnsmasq"},{"binary_version":"2.75-1ubuntu0.16.04.10","binary_name":"dnsmasq-base"},{"binary_version":"2.75-1ubuntu0.16.04.10","binary_name":"dnsmasq-utils"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4924-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2017-15107"},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2019-14513"}],"ecosystem":"Ubuntu:16.04:LTS"}}}],"schema_version":"1.7.3"}