{"id":"USN-3973-1","summary":"isc-dhcp vulnerability","details":"It was discovered that DHCP, when built with a mismatched external BIND\nlibrary, incorrectly handled certain memory operations. A remote attacker\ncould possibly use this issue to cause DHCP to crash, resulting in a\ndenial of service.\n","modified":"2026-04-22T09:55:40.988934Z","published":"2019-05-13T14:00:37Z","related":["UBUNTU-CVE-2019-6470"],"upstream":["CVE-2019-6470","UBUNTU-CVE-2019-6470"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3973-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-6470"}],"affected":[{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.3.5-3ubuntu7.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.5-3ubuntu7.1"}]}],"versions":["4.3.5-3ubuntu2","4.3.5-3ubuntu3","4.3.5-3ubuntu4","4.3.5-3ubuntu5","4.3.5-3ubuntu6","4.3.5-3ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-client"},{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-client-ddns"},{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-common"},{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-relay"},{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-server"},{"binary_version":"4.3.5-3ubuntu7.1","binary_name":"isc-dhcp-server-ldap"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"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":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2019-6470"}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3973-1.json"}}],"schema_version":"1.7.5"}