{"id":"USN-4517-1","summary":"libemail-address-list-perl vulnerability","details":"It was discovered that Email-Address-List does not properly parse email \naddresses during email-ingestion. A remote attacker could use this issue\nto cause an algorithmic complexity attack, resulting in a denial of \nservice. (CVE-2018-18898)\n","modified":"2026-02-10T04:41:55Z","published":"2020-09-17T21:20:32Z","related":["UBUNTU-CVE-2018-18898"],"upstream":["CVE-2018-18898","UBUNTU-CVE-2018-18898"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4517-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-18898"}],"affected":[{"package":{"name":"libemail-address-list-perl","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libemail-address-list-perl@0.05-1+deb9u1build0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.05-1+deb9u1build0.16.04.1"}]}],"versions":["0.05-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libemail-address-list-perl","binary_version":"0.05-1+deb9u1build0.16.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-18898","severity":[{"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4517-1.json"}},{"package":{"name":"libemail-address-list-perl","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libemail-address-list-perl@0.05-1+deb9u1build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.05-1+deb9u1build0.18.04.1"}]}],"versions":["0.05-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libemail-address-list-perl","binary_version":"0.05-1+deb9u1build0.18.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2018-18898","severity":[{"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4517-1.json"}}],"schema_version":"1.7.3"}