{"id":"USN-6780-1","summary":"python-idna vulnerability","details":"Guido Vranken discovered that idna did not properly manage certain inputs, \nwhich could lead to significant resource consumption. An attacker could \npossibly use this issue to cause a denial of service. \n","modified":"2026-02-10T04:43:49Z","published":"2024-05-21T13:56:05Z","related":["UBUNTU-CVE-2024-3651"],"upstream":["CVE-2024-3651","UBUNTU-CVE-2024-3651"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6780-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-3651"}],"affected":[{"package":{"name":"python-idna","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-idna@2.0-3ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0-3ubuntu0.1~esm1"}]}],"versions":["2.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-idna","binary_version":"2.0-3ubuntu0.1~esm1"},{"binary_name":"python-idna","binary_version":"2.0-3ubuntu0.1~esm1"},{"binary_name":"python3-idna","binary_version":"2.0-3ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6780-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"medium","type":"Ubuntu"}],"id":"CVE-2024-3651"}]}}},{"package":{"name":"python-idna","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-idna@2.6-1ubuntu0.1~esm1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6-1ubuntu0.1~esm1"}]}],"versions":["2.5-1","2.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"pypy-idna","binary_version":"2.6-1ubuntu0.1~esm1"},{"binary_name":"python-idna","binary_version":"2.6-1ubuntu0.1~esm1"},{"binary_name":"python3-idna","binary_version":"2.6-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6780-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"medium","type":"Ubuntu"}],"id":"CVE-2024-3651"}]}}},{"package":{"name":"python-idna","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/python-idna@2.8-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8-1ubuntu0.1"}]}],"versions":["2.6-2","2.6-2build1","2.8-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python-idna","binary_version":"2.8-1ubuntu0.1"},{"binary_name":"python3-idna","binary_version":"2.8-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6780-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"medium","type":"Ubuntu"}],"id":"CVE-2024-3651"}]}}},{"package":{"name":"python-idna","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/python-idna@3.3-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3-1ubuntu0.1"}]}],"versions":["2.10-1","3.2-2","3.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-idna","binary_version":"3.3-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6780-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"medium","type":"Ubuntu"}],"id":"CVE-2024-3651"}]}}},{"package":{"name":"python-idna","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/python-idna@3.6-2ubuntu0.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6-2ubuntu0.1"}]}],"versions":["3.3-2","3.6-2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-idna","binary_version":"3.6-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6780-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"severity":[{"score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","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":"medium","type":"Ubuntu"}],"id":"CVE-2024-3651"}]}}}],"schema_version":"1.7.3"}