{"id":"UBUNTU-CVE-2022-2929","details":"In ISC DHCP 1.0 -\u003e 4.4.3, ISC DHCP 4.1-ESV-R1 -\u003e 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.","modified":"2026-02-04T03:22:36.887877Z","published":"2022-10-05T00:00:00Z","related":["USN-5658-1","USN-5658-2","USN-5658-3"],"upstream":["CVE-2022-2929"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2929"},{"type":"REPORT","url":"https://lists.isc.org/pipermail/dhcp-announce/2022-October/000437.html"},{"type":"REPORT","url":"https://kb.isc.org/docs/cve-2022-2929"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5658-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5658-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5658-3"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2022-2929"}],"affected":[{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.2.4-7ubuntu12.13+esm2?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.4-7ubuntu12.13+esm2"}]}],"versions":["4.2.4-7ubuntu8","4.2.4-7ubuntu9","4.2.4-7ubuntu10","4.2.4-7ubuntu11","4.2.4-7ubuntu12","4.2.4-7ubuntu12.1","4.2.4-7ubuntu12.2","4.2.4-7ubuntu12.3","4.2.4-7ubuntu12.4","4.2.4-7ubuntu12.5","4.2.4-7ubuntu12.6","4.2.4-7ubuntu12.7","4.2.4-7ubuntu12.8","4.2.4-7ubuntu12.9","4.2.4-7ubuntu12.10","4.2.4-7ubuntu12.12","4.2.4-7ubuntu12.13","4.2.4-7ubuntu12.13+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-client"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-client-noddns"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-common"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-dev"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-relay"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-server"},{"binary_version":"4.2.4-7ubuntu12.13+esm2","binary_name":"isc-dhcp-server-ldap"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2929.json"}},{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.3.3-5ubuntu12.10+esm2?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-5ubuntu12.10+esm2"}]}],"versions":["4.3.1-5ubuntu3","4.3.1-5ubuntu4","4.3.1-5ubuntu5","4.3.3-5ubuntu1","4.3.3-5ubuntu2","4.3.3-5ubuntu4","4.3.3-5ubuntu5","4.3.3-5ubuntu7","4.3.3-5ubuntu8","4.3.3-5ubuntu9","4.3.3-5ubuntu10","4.3.3-5ubuntu11","4.3.3-5ubuntu12","4.3.3-5ubuntu12.1","4.3.3-5ubuntu12.3","4.3.3-5ubuntu12.4","4.3.3-5ubuntu12.6","4.3.3-5ubuntu12.7","4.3.3-5ubuntu12.9","4.3.3-5ubuntu12.10","4.3.3-5ubuntu12.10+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-client"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-client-ddns"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-common"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-dev"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-relay"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-server"},{"binary_version":"4.3.3-5ubuntu12.10+esm2","binary_name":"isc-dhcp-server-ldap"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2929.json"}},{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.3.5-3ubuntu7.4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.5-3ubuntu7.4"}]}],"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","4.3.5-3ubuntu7.1","4.3.5-3ubuntu7.2","4.3.5-3ubuntu7.3"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-client"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-client-ddns"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-common"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-dev"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-relay"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-server"},{"binary_version":"4.3.5-3ubuntu7.4","binary_name":"isc-dhcp-server-ldap"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2929.json"}},{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.4.1-2.1ubuntu5.20.04.4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-2.1ubuntu5.20.04.4"}]}],"versions":["4.4.1-2ubuntu5","4.4.1-2ubuntu6","4.4.1-2.1ubuntu1","4.4.1-2.1ubuntu2","4.4.1-2.1ubuntu3","4.4.1-2.1ubuntu4","4.4.1-2.1ubuntu5","4.4.1-2.1ubuntu5.20.04.1","4.4.1-2.1ubuntu5.20.04.2","4.4.1-2.1ubuntu5.20.04.3"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-client"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-client-ddns"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-common"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-dev"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-relay"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-server"},{"binary_version":"4.4.1-2.1ubuntu5.20.04.4","binary_name":"isc-dhcp-server-ldap"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2929.json"}},{"package":{"name":"isc-dhcp","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/isc-dhcp@4.4.1-2.3ubuntu2.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.1-2.3ubuntu2.3"}]}],"versions":["4.4.1-2.3ubuntu1","4.4.1-2.3ubuntu2","4.4.1-2.3ubuntu2.1","4.4.1-2.3ubuntu2.2"],"ecosystem_specific":{"binaries":[{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-client"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-client-ddns"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-common"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-dev"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-relay"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-server"},{"binary_version":"4.4.1-2.3ubuntu2.3","binary_name":"isc-dhcp-server-ldap"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2022/UBUNTU-CVE-2022-2929.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/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"}]}