{"schemaVersion":3,"id":"CVE-2021-20247","aliases":["openSUSE-SU-2021:0533-1","UBUNTU-CVE-2021-20247","DEBIAN-CVE-2021-20247","openSUSE-SU-2021:0516-1"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in mbsync before v1.3.5 and v1.4.1. Validations of the mailbox names returned by IMAP LIST/LSUB do not occur allowing a malicious or compromised server to use specially crafted mailbox names containing '..' path components to access data outside the designated mailbox on the opposite end of the synchronization channel. 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