{"schemaVersion":3,"id":"USN-5658-3","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"isc-dhcp vulnerabilities\n\nUSN-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)","dates":{"published":"2022-11-21T16:00:28.000Z","modified":"2026-06-29T13:49:41.870Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"isc-dhcp","name":"isc-dhcp","label":"isc-dhcp","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/isc-dhcp","purlType":"deb","versions":[{"text":"< 4.2.4-7ubuntu12.13+esm2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.2.4-7ubuntu12.13+esm2","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"isc-dhcp","label":"ISC DHCP","category":"server-app"}},"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5658-3","label":"ubuntu.com/security/notices/USN-5658-3","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-2928","label":"ubuntu.com/security/CVE-2022-2928","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-2929","label":"ubuntu.com/security/CVE-2022-2929","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2022-2928","CVE-2022-2929"],"downstream":[],"duplicates":[],"related":["CVE-2022-2928","CVE-2022-2929"]},"timeline":[{"kind":"published","date":"2022-11-21T16:00:28.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-29T13:49:41.870Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T13:24:37.217Z","stale":false,"partial":false}}