{"schemaVersion":3,"id":"USN-4122-1","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 obtain sensitive information, bypass Content\nSecurity Policy (CSP) protections, bypass same-origin restrictions,\nconduct cross-site scripting (XSS) attacks, cause a denial of service, or\nexecute arbitrary code. (CVE-2019-5849, CVE-2019-11734, CVE-2019-11735,\nCVE-2019-11737, CVE-2019-11738, CVE-2019-11740, CVE-2019-11742,\nCVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11748,\nCVE-2019-11749, CVE-2019-11750, CVE-2019-11752)\n\nIt was discovered that a compromised content process could log in to a\nmalicious Firefox Sync account. An attacker could potentially exploit\nthis, in combination with another vulnerability, to disable the sandbox.\n(CVE-2019-9812)\n\nIt was discovered that addons.mozilla.org and accounts.firefox.com could\nbe loaded in to the same content process. An attacker could potentially\nexploit this, in combination with another vulnerability that allowed a\ncross-site scripting (XSS) attack, to modify browser settings.\n(CVE-2019-11741)\n\nIt was discovered that the \"Forget about this site\" feature in the history\npane removes HTTP Strict Transport Security (HSTS) settings for sites on\nthe pre-load list. An attacker could potentially exploit this to bypass\nthe protections offered by HSTS. (CVE-2019-11747)","dates":{"published":"2019-09-04T20:46:34.000Z","modified":"2026-04-22T10:00:14.490Z","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":"< 69.0+build2-0ubuntu0.16.04.4","noFixRecorded":false,"fixedIn":null},{"text":"< 69.0+build2-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 69.0+build2-0ubuntu0.16.04.4 | < 69.0+build2-0ubuntu0.18.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4122-1","label":"ubuntu.com/security/notices/USN-4122-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-5849","label":"ubuntu.com/security/CVE-2019-5849","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-9812","label":"ubuntu.com/security/CVE-2019-9812","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11734","label":"ubuntu.com/security/CVE-2019-11734","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11735","label":"ubuntu.com/security/CVE-2019-11735","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11737","label":"ubuntu.com/security/CVE-2019-11737","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11738","label":"ubuntu.com/security/CVE-2019-11738","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11740","label":"ubuntu.com/security/CVE-2019-11740","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11741","label":"ubuntu.com/security/CVE-2019-11741","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11742","label":"ubuntu.com/security/CVE-2019-11742","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11743","label":"ubuntu.com/security/CVE-2019-11743","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11744","label":"ubuntu.com/security/CVE-2019-11744","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11746","label":"ubuntu.com/security/CVE-2019-11746","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11747","label":"ubuntu.com/security/CVE-2019-11747","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11748","label":"ubuntu.com/security/CVE-2019-11748","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11749","label":"ubuntu.com/security/CVE-2019-11749","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11750","label":"ubuntu.com/security/CVE-2019-11750","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2019-11752","label":"ubuntu.com/security/CVE-2019-11752","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2019-11734","CVE-2019-11735","CVE-2019-11737","CVE-2019-11738","CVE-2019-11740","CVE-2019-11741","CVE-2019-11742","CVE-2019-11743","CVE-2019-11744","CVE-2019-11746","CVE-2019-11747","CVE-2019-11748","CVE-2019-11749","CVE-2019-11750","CVE-2019-11752","CVE-2019-5849","CVE-2019-9812"],"downstream":[],"duplicates":[],"related":["CVE-2019-11734","CVE-2019-11735","CVE-2019-11737","CVE-2019-11738","CVE-2019-11740","CVE-2019-11741","CVE-2019-11742","CVE-2019-11743","CVE-2019-11744","CVE-2019-11746","CVE-2019-11747","CVE-2019-11748","CVE-2019-11749","CVE-2019-11750","CVE-2019-11752","CVE-2019-5849","CVE-2019-9812"]},"timeline":[{"kind":"published","date":"2019-09-04T20:46:34.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:00:14.490Z","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":"2026-10-19T22:44:25.674Z","stale":false,"partial":false}}