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. The highest threat from this vulnerability is to data confidentiality and integrity.
                
            Metrics
Affected Vendors & Products
Advisories
    | Source | ID | Title | 
|---|---|---|
|  Debian DLA | DLA-3066-1 | isync security update | 
|  EUVD | EUVD-2021-7686 | 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. The highest threat from this vulnerability is to data confidentiality and integrity. | 
Fixes
    Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-03T17:37:23.202Z
Reserved: 2020-12-17T00:00:00
Link: CVE-2021-20247
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2021-02-23T19:15:13.510
Modified: 2024-11-21T05:46:12.580
Link: CVE-2021-20247
 Redhat
                        Redhat
                    No data.
 OpenCVE Enrichment
                        OpenCVE Enrichment
                    No data.