{"schemaVersion":3,"id":"MGASA-2021-0557","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated dovecot packages fix security vulnerabilities\n\nUpdated dovecot packages fix security vulnerabilities:\n\nThe Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource\nConsumption, as demonstrated by a situation with a complex regular\nexpression for the regex extension (CVE-2020-28200).\n\nDovecot before 2.3.15 allows ../ Path Traversal. An attacker with access\nto the local filesystem can trick OAuth2 authentication into using an HS256\nvalidation key from an attacker-controlled location. This occurs during use\nof local JWT validation with the posix fs driver (CVE-2021-29157).\n\nThe submission service in Dovecot before 2.3.15 allows STARTTLS command\ninjection in lib-smtp. Sensitive information can be redirected to an\nattacker-controlled address (CVE-2021-33515).","dates":{"published":"2021-12-19T12:26:08.000Z","modified":"2026-04-16T04:42:08.729Z","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":"dovecot","name":"dovecot","label":"dovecot","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/dovecot","purlType":"rpm","versions":[{"text":"< 2.3.17.1-1.1.mga8","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.3.17.1-1.1.mga8","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2021-0557.html","label":"advisories.mageia.org/MGASA-2021-0557.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29160","label":"bugs.mageia.org/show_bug.cgi?id=29160","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-June/000460.html","label":"dovecot.org/pipermail/dovecot-news/2021-June/000460.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-June/000461.html","label":"dovecot.org/pipermail/dovecot-news/2021-June/000461.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-June/000462.html","label":"dovecot.org/pipermail/dovecot-news/2021-June/000462.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-June/000459.html","label":"dovecot.org/pipermail/dovecot-news/2021-June/000459.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-June/000457.html","label":"dovecot.org/pipermail/dovecot-news/2021-June/000457.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-October/000465.html","label":"dovecot.org/pipermail/dovecot-news/2021-October/000465.html","hostname":"dovecot.org","tags":["WEB"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2021-December/000468.html","label":"dovecot.org/pipermail/dovecot-news/2021-December/000468.html","hostname":"dovecot.org","tags":["WEB"]}],"lineage":{"upstream":["CVE-2020-28200","CVE-2021-29157","CVE-2021-33515"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-12-19T12:26:08.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:42:08.729Z","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":"2026-10-22T00:59:19.529Z","stale":false,"partial":false}}