SB20200611146 - Cleartext transmission of sensitive information in thunderbird (Alpine package)
Published: June 11, 2020
Security Bulletin ID
SB20200611146
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 security vulnerability.
1) Cleartext transmission of sensitive information (CVE-ID: CVE-2020-12398)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists in STARTTLS implementation for an IMAP, when the server sends a PREAUTH response. In this case Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection.
Remediation
Install update from vendor's website.