{"schemaVersion":3,"id":"MGASA-2020-0091","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated thunderbird packages fix security vulnerabilities\n\nUpdated thunderbird packages fix security vulnerabilities:\n\nWhen deriving an identifier for an email message, uninitialized memory was\nused in addition to the message contents (CVE-2020-6792).\n\nWhen processing an email message with an ill-formed envelope, Thunderbird\ncould read data from a random memory location (CVE-2020-6793).\n\nIf a user saved passwords before Thunderbird 60 and then later set a master\npassword, an unencrypted copy of these passwords is still accessible. This\nis because the older stored password file was not deleted when the data was\ncopied to a new format starting in Thunderbird 60. The new master password is\nadded only on the new file. This could allow the exposure of stored password\ndata outside of user expectations (CVE-2020-6794).\n\nWhen processing a message that contains multiple S/MIME signatures, a bug in\nthe MIME processing code caused a null pointer dereference, leading to an\nunexploitable crash (CVE-2020-6795).\n\nIf a <template> tag was used in a <select> tag, the parser could be confused\nand allow JavaScript parsing and execution when it should not be allowed. A\nsite that relied on the browser behaving correctly could suffer a cross-site\nscripting vulnerability as a result (CVE-2020-6798).\n\nMemory safety bugs present in Thunderbird ESR 68.4. Some of these bugs showed\nevidence of memory corruption and presumably some of these could have been\nexploited to run arbitrary code (CVE-2020-6800).","dates":{"published":"2020-02-18T14:05:53.000Z","modified":"2026-04-16T04:42:21.044Z","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":"mageia","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird","purlType":"rpm","versions":[{"text":"< 68.5.0-1.mga7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 68.5.0-1.mga7","eol":null,"hubHref":null},{"vendor":"mageia","product":"thunderbird-l10n","name":"thunderbird-l10n","label":"thunderbird-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird-l10n","purlType":"rpm","versions":[{"text":"< 68.5.0-1.mga7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 68.5.0-1.mga7","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2020-0091.html","label":"advisories.mageia.org/MGASA-2020-0091.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=26188","label":"bugs.mageia.org/show_bug.cgi?id=26188","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2020-07/","label":"www.mozilla.org/en-US/security/advisories/mfsa2020-07/","hostname":"www.mozilla.org","tags":["Advisory"]},{"url":"https://www.thunderbird.net/en-US/thunderbird/68.5.0/releasenotes/","label":"www.thunderbird.net/en-US/thunderbird/68.5.0/releasenotes/","hostname":"www.thunderbird.net","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-6792","CVE-2020-6793","CVE-2020-6794","CVE-2020-6795","CVE-2020-6798","CVE-2020-6800"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-02-18T14:05:53.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:42:21.044Z","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":"2026-10-20T20:27:27.526Z","stale":false,"partial":false}}