SB2015042807 - Fedora 22 update for dovecot
Published: April 28, 2015 Updated: April 24, 2025
Security Bulletin ID
SB2015042807
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2015-3420)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.
Remediation
Install update from vendor's website.