{"schemaVersion":3,"id":"MGASA-2021-0163","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated firefox packages fix security vulnerabilities\n\nTexture upload into an unbound backing buffer resulted in an out-of-bound read.\n(CVE-2021-23981)\n\nAngle graphics library out of date. (CVE-2021-4127)\n\nInternal network hosts could have been probed by a malicious webpage.\n(CVE-2021-23982)\n\nMalicious extensions could have spoofed popup information. (CVE-2021-23984)\n\nMemory safety bugs fixed in Firefox 87 and Firefox ESR 78.9 (CVE-2021-23987).","dates":{"published":"2021-03-30T20:08:49.000Z","modified":"2026-04-16T04:42:55.185Z","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":"firefox","name":"firefox","label":"firefox","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox","purlType":"rpm","versions":[{"text":"< 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3.63.0-1.mga8","eol":null,"hubHref":null}],"affectedCount":8,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2021-0163.html","label":"advisories.mageia.org/MGASA-2021-0163.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=28641","label":"bugs.mageia.org/show_bug.cgi?id=28641","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/firefox/78.9.0/releasenotes/","label":"www.mozilla.org/en-US/firefox/78.9.0/releasenotes/","hostname":"www.mozilla.org","tags":["WEB"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2021-11/","label":"www.mozilla.org/en-US/security/advisories/mfsa2021-11/","hostname":"www.mozilla.org","tags":["Advisory"]},{"url":"https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.63_release_notes","label":"developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.63_release_notes","hostname":"developer.mozilla.org","tags":["WEB"]},{"url":"https://groups.google.com/g/mozilla.dev.tech.nspr/c/wwXfLFWZRlA","label":"groups.google.com/g/mozilla.dev.tech.nspr/c/wwXfLFWZRlA","hostname":"groups.google.com","tags":["WEB"]}],"lineage":{"upstream":["CVE-2021-23981","CVE-2021-23982","CVE-2021-23984","CVE-2021-23987","CVE-2021-4127"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-03-30T20:08:49.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:42:55.185Z","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":"2026-10-20T08:32:39.849Z","stale":false,"partial":false}}