{"id":"USN-4168-1","summary":"libidn2 vulnerabilities","details":"It was discovered that Libidn2 incorrectly handled certain inputs.\nA attacker could possibly use this issue to impersonate domains.\n(CVE-2019-12290)\n\nIt was discovered that Libidn2 incorrectly handled certain inputs.\nAn attacker could possibly use this issue to execute arbitrary code.\n(CVE-2019-18224)\n","modified":"2026-02-10T04:41:40Z","published":"2019-10-29T12:47:20Z","related":["UBUNTU-CVE-2019-12290","UBUNTU-CVE-2019-18224"],"upstream":["CVE-2019-12290","CVE-2019-18224","UBUNTU-CVE-2019-12290","UBUNTU-CVE-2019-18224"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4168-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12290"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-18224"}],"affected":[{"package":{"name":"libidn2","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libidn2@2.0.4-1.1ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.4-1.1ubuntu0.2"}]}],"versions":["2.0.4-1","2.0.4-1.1","2.0.4-1.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"idn2","binary_version":"2.0.4-1.1ubuntu0.2"},{"binary_name":"libidn2-0","binary_version":"2.0.4-1.1ubuntu0.2"},{"binary_name":"libidn2-0-dev","binary_version":"2.0.4-1.1ubuntu0.2"},{"binary_name":"libidn2-dev","binary_version":"2.0.4-1.1ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4168-1.json","cves_map":{"cves":[{"id":"CVE-2019-12290","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2019-18224","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"}}}],"schema_version":"1.7.3"}