{"schemaVersion":3,"id":"USN-4866-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"netty vulnerabilities\n\nIt was discovered that Netty incorrectly implements HTTP/2. An attacker\ncould possibly use this issue to cause a denial of service. (CVE-2019-9512,\nCVE-2019-9514, CVE-2019-9515, CVE-2019-9518)","dates":{"published":"2021-06-29T19:18:08.000Z","modified":"2026-04-27T15:50:07.465Z","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":"netty","name":"netty","label":"netty","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/netty","purlType":"deb","versions":[{"text":"< 1:4.1.7-4ubuntu0.1+esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:4.1.7-4ubuntu0.1+esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4866-1","label":"ubuntu.com/security/notices/USN-4866-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-9512","label":"ubuntu.com/security/CVE-2019-9512","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-9514","label":"ubuntu.com/security/CVE-2019-9514","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-9515","label":"ubuntu.com/security/CVE-2019-9515","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-9518","label":"ubuntu.com/security/CVE-2019-9518","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2019-9512","CVE-2019-9514","CVE-2019-9515","CVE-2019-9518"],"downstream":[],"duplicates":[],"related":["CVE-2019-9512","CVE-2019-9514","CVE-2019-9515","CVE-2019-9518"]},"timeline":[{"kind":"published","date":"2021-06-29T19:18:08.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:50:07.465Z","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":"2026-10-21T03:23:37.658Z","stale":false,"partial":false}}