Daniel B. Cid

**Name of the Vulnerable Software and Affected Versions** fail2ban versions 0.8 and earlier **Description** The issue allows remote attackers to cause a denial of service by adding arbitrary IP addresses to the sshd log file. This can be achieved by logging in via ssh with a client protocol version identification containing an IP address string. **Recommendations** For fail2ban versions 0.8 and earlier, at the moment, there is no information about a newer version that contains a fix for this vulnerability.