{"schemaVersion":3,"id":"USN-5345-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"thunderbird vulnerabilities\n\nMultiple security issues were discovered in Thunderbird. If a user were\ntricked into opening a specially crafted website in a browsing context,\nan attacker could potentially exploit these to cause a denial of service,\nbypass security restrictions, obtain sensitive information, cause\nundefined behaviour, spoof the browser UI, or execute arbitrary code.\n(CVE-2022-22759, CVE-2022-22760, CVE-2022-22761, CVE-2022-22763,\nCVE-2022-22764, CVE-2022-26381, CVE-2022-26383, CVE-2022-26384)\n\nIt was discovered that extensions of a particular type could auto-update\nthemselves and bypass the prompt that requests permissions. If a user\nwere tricked into installing a specially crafted extension, an attacker\ncould potentially exploit this to bypass security restrictions.\n(CVE-2022-22754)\n\nIt was discovered that dragging and dropping an image into a folder could\nresult in it being marked as executable. If a user were tricked into\ndragging and dropping a specially crafted image, an attacker could\npotentially exploit this to execute arbitrary code. (CVE-2022-22756)\n\nIt was discovered that files downloaded to /tmp were accessible to other\nusers. A local attacker could exploit this to obtain sensitive\ninformation. (CVE-2022-26386)\n\nA TOCTOU bug was discovered when verifying addon signatures during\ninstall. A local attacker could potentially exploit this to trick a\nuser into installing an addon with an invalid signature.\n(CVE-2022-26387)\n\nAn out-of-bounds write by one byte was discovered when processing\nmessages in some circumstances. If a user were tricked into opening a\nspecially crafted message, an attacker could potentially exploit this\nto cause a denial of service. (CVE-2022-0566)","dates":{"published":"2022-03-23T22:44:15.000Z","modified":"2026-04-22T10:22:34.372Z","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":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/thunderbird","purlType":"deb","versions":[{"text":"< 1:91.7.0+build2-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:91.7.0+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:91.7.0+build2-0ubuntu0.18.04.1 | < 1:91.7.0+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5345-1","label":"ubuntu.com/security/notices/USN-5345-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-0566","label":"ubuntu.com/security/CVE-2022-0566","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22754","label":"ubuntu.com/security/CVE-2022-22754","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22756","label":"ubuntu.com/security/CVE-2022-22756","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22759","label":"ubuntu.com/security/CVE-2022-22759","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22760","label":"ubuntu.com/security/CVE-2022-22760","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22761","label":"ubuntu.com/security/CVE-2022-22761","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22763","label":"ubuntu.com/security/CVE-2022-22763","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2022-22764","label":"ubuntu.com/security/CVE-2022-22764","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-2022-26383","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-2022-26386","label":"ubuntu.com/security/CVE-2022-26386","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-2022-0566","CVE-2022-22754","CVE-2022-22756","CVE-2022-22759","CVE-2022-22760","CVE-2022-22761","CVE-2022-22763","CVE-2022-22764","CVE-2022-26381","CVE-2022-26383","CVE-2022-26384","CVE-2022-26386","CVE-2022-26387"],"downstream":[],"duplicates":[],"related":["CVE-2022-0566","CVE-2022-22754","CVE-2022-22756","CVE-2022-22759","CVE-2022-22760","CVE-2022-22761","CVE-2022-22763","CVE-2022-22764","CVE-2022-26381","CVE-2022-26383","CVE-2022-26384","CVE-2022-26386","CVE-2022-26387"]},"timeline":[{"kind":"published","date":"2022-03-23T22:44:15.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:22:34.372Z","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":"2026-10-20T04:23:52.723Z","stale":false,"partial":false}}