{"schemaVersion":3,"id":"USN-4474-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nMultiple security issues were discovered in Firefox. If a user were\ntricked in to opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, trick the user\nin to installing a malicious extension, spoof the URL bar, leak sensitive\ninformation between origins, or execute arbitrary code. (CVE-2020-15664,\nCVE-2020-15665, CVE-2020-15666, CVE-2020-15670)\n\nIt was discovered that NSS incorrectly handled certain signatures.\nAn attacker could possibly use this issue to expose sensitive information.\n(CVE-2020-12400, CVE-2020-12401, CVE-2020-6829)\n\nA data race was discovered when importing certificate information in to\nthe trust store. An attacker could potentially exploit this to cause an\nunspecified impact. (CVE-2020-15668)","dates":{"published":"2020-08-26T18:29:57.000Z","modified":"2026-04-22T10:06:47.871Z","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":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 80.0+build2-0ubuntu0.16.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 80.0+build2-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 80.0+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 80.0+build2-0ubuntu0.16.04.1 | < 80.0+build2-0ubuntu0.18.04.1 | < 80.0+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4474-1","label":"ubuntu.com/security/notices/USN-4474-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-6829","label":"ubuntu.com/security/CVE-2020-6829","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-12400","label":"ubuntu.com/security/CVE-2020-12400","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-12401","label":"ubuntu.com/security/CVE-2020-12401","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15664","label":"ubuntu.com/security/CVE-2020-15664","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15665","label":"ubuntu.com/security/CVE-2020-15665","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15666","label":"ubuntu.com/security/CVE-2020-15666","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15668","label":"ubuntu.com/security/CVE-2020-15668","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15670","label":"ubuntu.com/security/CVE-2020-15670","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-12400","CVE-2020-12401","CVE-2020-15664","CVE-2020-15665","CVE-2020-15666","CVE-2020-15668","CVE-2020-15670","CVE-2020-6829"],"downstream":[],"duplicates":[],"related":["CVE-2020-12400","CVE-2020-12401","CVE-2020-15664","CVE-2020-15665","CVE-2020-15666","CVE-2020-15668","CVE-2020-15670","CVE-2020-6829"]},"timeline":[{"kind":"published","date":"2020-08-26T18:29:57.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:06:47.871Z","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":"2026-10-20T00:42:08.526Z","stale":false,"partial":false}}