SB2022092508 - Gentoo update for Fetchmail
Published: September 25, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Improper Initialization (CVE-ID: CVE-2021-36386)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper initialization when logging error messages. A local user can trigger an error condition on the fetchmail side and gain access to sensitive information or perform a denial of service (DoS) attack.
2) Inadequate Encryption Strength (CVE-ID: CVE-2021-39272)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in
some circumstances, such as a certain situation with IMAP and PREAUTH. A remote attacker with ability to intercept network traffic can gain access to sensitive information.
Remediation
Install update from vendor's website.