{"schemaVersion":3,"id":"USN-3812-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"nginx vulnerabilities\n\nIt was discovered that nginx incorrectly handled the HTTP/2 implementation.\nA remote attacker could possibly use this issue to cause excessive memory\nconsumption, leading to a denial of service. This issue only affected\nUbuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16843)\n\nGal Goldshtein discovered that nginx incorrectly handled the HTTP/2\nimplementation. A remote attacker could possibly use this issue to cause\nexcessive CPU usage, leading to a denial of service. This issue only\naffected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10.\n(CVE-2018-16844)\n\nIt was discovered that nginx incorrectly handled the ngx_http_mp4_module\nmodule. A remote attacker could possibly use this issue with a specially\ncrafted mp4 file to cause nginx to crash, stop responding, or access\narbitrary memory. (CVE-2018-16845)","dates":{"published":"2018-11-07T15:01:09.000Z","modified":"2026-02-10T04:41:26.000Z","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":"nginx","name":"nginx","label":"nginx","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/nginx","purlType":"deb","versions":[{"text":"< 1.4.6-1ubuntu3.9","noFixRecorded":false,"fixedIn":null},{"text":"< 1.10.3-0ubuntu0.16.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 1.14.0-0ubuntu1.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.4.6-1ubuntu3.9 | < 1.10.3-0ubuntu0.16.04.3 | < 1.14.0-0ubuntu1.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3812-1","label":"ubuntu.com/security/notices/USN-3812-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-16843","label":"ubuntu.com/security/CVE-2018-16843","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-16844","label":"ubuntu.com/security/CVE-2018-16844","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-16845","label":"ubuntu.com/security/CVE-2018-16845","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2018-16843","CVE-2018-16844","CVE-2018-16845"],"downstream":[],"duplicates":[],"related":["CVE-2018-16843","CVE-2018-16844","CVE-2018-16845"]},"timeline":[{"kind":"published","date":"2018-11-07T15:01:09.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:26.000Z","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":"2026-10-20T17:24:34.215Z","stale":false,"partial":false}}