{"id":"UBUNTU-CVE-2025-11232","details":"To trigger the issue, three configuration parameters must have specific settings: \"hostname-char-set\" must be left at the default setting, which is \"[^A-Za-z0-9.-]\"; \"hostname-char-replacement\" must be empty (the default); and \"ddns-qualifying-suffix\" must *NOT* be empty (the default is empty). DDNS updates do not need to be enabled for this issue to manifest. A client that sends certain option content would then cause kea-dhcp4 to exit unexpectedly. This issue affects Kea versions 3.0.1 through 3.0.1 and 3.1.1 through 3.1.2.","modified":"2025-11-28T07:56:31.738391Z","published":"2025-10-29T18:15:00Z","withdrawn":"2025-11-28T05:13:40Z","upstream":["CVE-2025-11232"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-11232"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-11232"},{"type":"REPORT","url":"https://kb.isc.org/docs/cve-2025-11232"}],"affected":[{"package":{"name":"isc-kea","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/isc-kea@1.0.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.0-1","1.0.0-1build1","1.0.0-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea-admin","binary_version":"1.0.0-1ubuntu0.1~esm1"},{"binary_name":"kea-common","binary_version":"1.0.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dev","binary_version":"1.0.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"1.0.0-1ubuntu0.1~esm1"},{"binary_version":"1.0.0-1ubuntu0.1~esm1","binary_name":"kea-dhcp4-server"},{"binary_version":"1.0.0-1ubuntu0.1~esm1","binary_name":"kea-dhcp6-server"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/isc-kea@1.1.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.0-1","1.1.0-1build1","1.1.0-1build2","1.1.0-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea-admin","binary_version":"1.1.0-1ubuntu0.1~esm1"},{"binary_name":"kea-common","binary_version":"1.1.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dev","binary_version":"1.1.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"1.1.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dhcp4-server","binary_version":"1.1.0-1ubuntu0.1~esm1"},{"binary_name":"kea-dhcp6-server","binary_version":"1.1.0-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/isc-kea@1.6.2-0ubuntu1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.0-2ubuntu1","1.5.0-2ubuntu2","1.5.0-2ubuntu3","1.6.1-0ubuntu1","1.6.1-0ubuntu2","1.6.2-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea-admin","binary_version":"1.6.2-0ubuntu1"},{"binary_name":"kea-common","binary_version":"1.6.2-0ubuntu1"},{"binary_name":"kea-ctrl-agent","binary_version":"1.6.2-0ubuntu1"},{"binary_name":"kea-dev","binary_version":"1.6.2-0ubuntu1"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"1.6.2-0ubuntu1"},{"binary_version":"1.6.2-0ubuntu1","binary_name":"kea-dhcp4-server"},{"binary_version":"1.6.2-0ubuntu1","binary_name":"kea-dhcp6-server"},{"binary_version":"1.6.2-0ubuntu1","binary_name":"python3-kea-connector"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/isc-kea@2.0.2-1ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-0ubuntu1","2.0.1-2","2.0.2-1","2.0.2-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"kea-admin","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"kea-common","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"kea-ctrl-agent","binary_version":"2.0.2-1ubuntu0.1"},{"binary_version":"2.0.2-1ubuntu0.1","binary_name":"kea-dev"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"kea-dhcp4-server","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"kea-dhcp6-server","binary_version":"2.0.2-1ubuntu0.1"},{"binary_name":"python3-kea-connector","binary_version":"2.0.2-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/isc-kea@2.4.1-3ubuntu0.1?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.1-3","2.4.0-1","2.4.1-1","2.4.1-2build1","2.4.1-3build1","2.4.1-3build3","2.4.1-3build3.1","2.4.1-3ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"kea-admin","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"kea-common","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"kea-ctrl-agent","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"kea-dev","binary_version":"2.4.1-3ubuntu0.1"},{"binary_version":"2.4.1-3ubuntu0.1","binary_name":"kea-dhcp-ddns-server"},{"binary_name":"kea-dhcp4-server","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"kea-dhcp6-server","binary_version":"2.4.1-3ubuntu0.1"},{"binary_name":"python3-kea-connector","binary_version":"2.4.1-3ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/isc-kea@2.6.3-2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.1-1","2.6.1-2","2.6.3-1","2.6.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"kea","binary_version":"2.6.3-2"},{"binary_name":"kea-admin","binary_version":"2.6.3-2"},{"binary_name":"kea-common","binary_version":"2.6.3-2"},{"binary_name":"kea-ctrl-agent","binary_version":"2.6.3-2"},{"binary_name":"kea-dev","binary_version":"2.6.3-2"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"2.6.3-2"},{"binary_name":"kea-dhcp4-server","binary_version":"2.6.3-2"},{"binary_name":"kea-dhcp6-server","binary_version":"2.6.3-2"},{"binary_name":"python3-kea-connector","binary_version":"2.6.3-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}},{"package":{"name":"isc-kea","ecosystem":"Ubuntu:25.04","purl":"pkg:deb/ubuntu/isc-kea@2.6.1-1ubuntu0.1?arch=source&distro=plucky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1-3build4","2.6.1-1","2.6.1-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"kea","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-admin","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-common","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-ctrl-agent","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-dev","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-dhcp-ddns-server","binary_version":"2.6.1-1ubuntu0.1"},{"binary_name":"kea-dhcp4-server","binary_version":"2.6.1-1ubuntu0.1"},{"binary_version":"2.6.1-1ubuntu0.1","binary_name":"kea-dhcp6-server"},{"binary_name":"python3-kea-connector","binary_version":"2.6.1-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-11232.json"}}],"schema_version":"1.7.3","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":"medium"}]}