SB2021010708 - Information disclosure in dovecot (Alpine package)
Published: January 7, 2021
Security Bulletin ID
SB2021010708
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2020-24386)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to an error, related to IMAP hibernation. A remote user can run a specially crafted command to discover system directory structure and access emails of other users.
Remediation
Install update from vendor's website.