{"schemaVersion":3,"id":"USN-5321-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nUSN-5321-1 fixed vulnerabilities in Firefox. The update didn't include\narm64 because of a regression. This update provides the corresponding\nupdate for arm64.\n\nThis update also removes Yandex and Mail.ru as optional search providers\nin the drop-down search menu.\n\nOriginal advisory details:\n\n Multiple security issues were discovered in Firefox. If a user were\n tricked into opening a specially crafted website, an attacker could\n potentially exploit these to cause a denial of service, spoof the browser\n UI, bypass security restrictions, obtain sensitive information, or execute\n arbitrary code. (CVE-2022-0843, CVE-2022-26381, CVE-2022-26382,\n CVE-2022-26383, CVE-2022-26384, CVE-2022-26385)\n\n A TOCTOU bug was discovered when verifying addon signatures during\n install. A local attacker could potentially exploit this to trick a\n user into installing an addon with an invalid signature.\n (CVE-2022-26387)","dates":{"published":"2022-03-17T12:47:30.000Z","modified":"2026-04-22T10:21:59.209Z","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":"< 98.0.1+build2-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 98.0.1+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 98.0.1+build2-0ubuntu0.18.04.1 | < 98.0.1+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5321-2","label":"ubuntu.com/security/notices/USN-5321-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-0843","label":"ubuntu.com/security/CVE-2022-0843","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26381","label":"ubuntu.com/security/CVE-2022-26381","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26382","label":"ubuntu.com/security/CVE-2022-26382","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26383","label":"ubuntu.com/security/CVE-2022-26383","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26384","label":"ubuntu.com/security/CVE-2022-26384","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26385","label":"ubuntu.com/security/CVE-2022-26385","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-26387","label":"ubuntu.com/security/CVE-2022-26387","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2022-0843","CVE-2022-26381","CVE-2022-26382","CVE-2022-26383","CVE-2022-26384","CVE-2022-26385","CVE-2022-26387"],"downstream":[],"duplicates":[],"related":["CVE-2022-0843","CVE-2022-26381","CVE-2022-26382","CVE-2022-26383","CVE-2022-26384","CVE-2022-26385","CVE-2022-26387"]},"timeline":[{"kind":"published","date":"2022-03-17T12:47:30.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:21:59.209Z","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":"2026-10-20T16:57:46.204Z","stale":false,"partial":false}}