CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
96.3%
fail2ban 0.8 and earlier does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6302.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | fail2ban | < 0.8.0-4 | fail2ban_0.8.0-4_all.deb |
Debian | 11 | all | fail2ban | < 0.8.0-4 | fail2ban_0.8.0-4_all.deb |
Debian | 999 | all | fail2ban | < 0.8.0-4 | fail2ban_0.8.0-4_all.deb |
Debian | 13 | all | fail2ban | < 0.8.0-4 | fail2ban_0.8.0-4_all.deb |