{"id":"USN-5658-3","summary":"isc-dhcp vulnerabilities","details":"USN-5658-1 fixed several vulnerabilities in DHCP. This update provides\nthe corresponding update for Ubuntu 14.04 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":"2026-04-22T10:49:36.124909Z","published":"2022-11-21T16:00:28Z","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-5658-3"},{"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: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_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-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","binary_version":"4.2.4-7ubuntu12.13+esm2"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2022-2928","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"}]},{"id":"CVE-2022-2929","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"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5658-3.json"}}],"schema_version":"1.7.5"}