{"schemaVersion":3,"id":"USN-5013-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"systemd vulnerabilities\n\nUSN-5013-1 fixed several vulnerabilities in systemd. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\n\nOriginal advisory details:\n\n It was discovered that systemd incorrectly handled certain mount paths. A\n local attacker could possibly use this issue to cause systemd to crash,\n resulting in a denial of service. (CVE-2021-33910)\n\n Mitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW\n packets. A remote attacker could possibly use this issue to reconfigure\n servers. (CVE-2020-13529)","dates":{"published":"2021-07-20T17:36:52.000Z","modified":"2026-06-25T13:30:40.664Z","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":"systemd","name":"systemd","label":"systemd","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/systemd","purlType":"deb","versions":[{"text":"< 229-4ubuntu21.31+esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 229-4ubuntu21.31+esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5013-2","label":"ubuntu.com/security/notices/USN-5013-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-13529","label":"ubuntu.com/security/CVE-2020-13529","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-33910","label":"ubuntu.com/security/CVE-2021-33910","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-13529","CVE-2021-33910"],"downstream":[],"duplicates":[],"related":["CVE-2020-13529","CVE-2021-33910"]},"timeline":[{"kind":"published","date":"2021-07-20T17:36:52.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:30:40.664Z","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":"2026-10-19T21:43:50.243Z","stale":false,"partial":false}}