Debian Security Bug TrackerDEBIANCVE:CVE-2021-20247CVE-2021-20247
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.006 Low
EPSS
Percentile
77.9%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | isync | < 1.3.0-2.1 | isync_1.3.0-2.1_all.deb |
| Debian | 11 | all | isync | < 1.3.0-2.1 | isync_1.3.0-2.1_all.deb |
| Debian | 10 | all | isync | < 1.3.0-2.2~deb10u1 | isync_1.3.0-2.2~deb10u1_all.deb |
| Debian | 999 | all | isync | < 1.3.0-2.1 | isync_1.3.0-2.1_all.deb |
| Debian | 13 | all | isync | < 1.3.0-2.1 | isync_1.3.0-2.1_all.deb |
Related
7.4 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.006 Low
EPSS
Percentile
77.9%