{"id":"USN-5658-2","summary":"isc-dhcp vulnerabilities","details":"USN-5658-1 fixed vulnerabilities in DHCP. This update provides\nthe corresponding updates for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that DHCP incorrectly handled option reference counting.\n A remote attacker could possibly use this issue to cause DHCP servers to\n crash, resulting in a denial of service. (CVE-2022-2928)\n\n It was discovered that DHCP incorrectly handled certain memory operations.\n A remote attacker could possibly use this issue to cause DHCP clients and\n servers to consume resources, leading to a denial of service.\n (CVE-2022-2929)\n","modified":"2026-02-10T04:42:47Z","published":"2022-11-07T19:24:32Z","related":["UBUNTU-CVE-2022-2928","UBUNTU-CVE-2022-2929"],"upstream":["CVE-2022-2928","CVE-2022-2929","UBUNTU-CVE-2022-2928","UBUNTU-CVE-2022-2929"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5658-2"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2928"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-2929"}],"affected":[{"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/usn/USN-5658-2.json","cves_map":{"cves":[{"id":"CVE-2022-2928","severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-2929","severity":[{"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":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}}],"schema_version":"1.7.3"}