CVE-2021-20247

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.

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1928963	Issue Tracking Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/02/22/1	Exploit Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CAXQLCK35QGRCRENRTGKJO4VVZGUXUJJ/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GVDEBZQJMWDW5JFK4NTHH6DAFNAZTESW/	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/07/msg00001.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202208-15	Third Party Advisory

Configuration 1

cpe:2.3:a:mbsync_project:mbsync:*:*:*:*:*:*:*:* cpe:2.3:a:mbsync_project:mbsync:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* cpe:2.3:a:fedoraproject:extra_packages_for_enterprise_linux:8.0:*:*:*:*:*:*:*

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Published : 2021-02-23 07:15

Updated : 2023-02-02 05:10

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NVD link : CVE-2021-20247

Mitre link : CVE-2021-20247

Extra Packages For Enterprise Linux

Fedoraproject

CWE-22