{"schemaVersion":3,"id":"USN-4443-1","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, obtain sensitive\ninformation, bypass iframe sandbox restrictions, confuse the user, or\nexecute arbitrary code. (CVE-2020-6463, CVE-2020-6514, CVE-2020-15652,\nCVE-2020-15653, CVE-2020-15654, CVE-2020-15656, CVE-2020-15658,\nCVE-2020-15659)\n\nIt was discovered that redirected HTTP requests which are observed or\nmodified through a web extension could bypass existing CORS checks. If a\nuser were tricked in to installing a specially crafted extension, an\nattacker could potentially exploit this to obtain sensitive information\nacross origins. (CVE-2020-15655)","dates":{"published":"2020-07-29T16:40:08.000Z","modified":"2026-04-22T10:06:28.587Z","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":"< 79.0+build1-0ubuntu0.16.04.2","noFixRecorded":false,"fixedIn":null},{"text":"< 79.0+build1-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 79.0+build1-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 79.0+build1-0ubuntu0.16.04.2 | < 79.0+build1-0ubuntu0.18.04.1 | < 79.0+build1-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4443-1","label":"ubuntu.com/security/notices/USN-4443-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-6463","label":"ubuntu.com/security/CVE-2020-6463","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-6514","label":"ubuntu.com/security/CVE-2020-6514","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15652","label":"ubuntu.com/security/CVE-2020-15652","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15653","label":"ubuntu.com/security/CVE-2020-15653","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15654","label":"ubuntu.com/security/CVE-2020-15654","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15655","label":"ubuntu.com/security/CVE-2020-15655","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15656","label":"ubuntu.com/security/CVE-2020-15656","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15658","label":"ubuntu.com/security/CVE-2020-15658","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-15659","label":"ubuntu.com/security/CVE-2020-15659","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-15652","CVE-2020-15653","CVE-2020-15654","CVE-2020-15655","CVE-2020-15656","CVE-2020-15658","CVE-2020-15659","CVE-2020-6463","CVE-2020-6514"],"downstream":[],"duplicates":[],"related":["CVE-2020-15652","CVE-2020-15653","CVE-2020-15654","CVE-2020-15655","CVE-2020-15656","CVE-2020-15658","CVE-2020-15659","CVE-2020-6463","CVE-2020-6514"]},"timeline":[{"kind":"published","date":"2020-07-29T16:40:08.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:06:28.587Z","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":"2026-10-20T09:53:07.836Z","stale":false,"partial":false}}