CVE-2009-0362
fail2ban - Denial of Service via Crafted Reverse-Resolved DNS Name
Title source: llmDescription
filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect regular expression that allows remote attackers to cause a denial of service (forced authentication failures) via a crafted reverse-resolved DNS name (rhost) entry that contains a substring that is interpreted as an IP address, a different vulnerability than CVE-2007-4321.
References (3)
Core 3
Core References
Vendor Advisory third-party-advisory
x_refsource_secunia
http://secunia.com/advisories/33890
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/33734
Exploit x_refsource_confirm
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163
Scores
EPSS
0.0130
EPSS Percentile
66.9%
Details
CWE
CWE-287
Status
published
Products (1)
fail2ban/fail2ban
0.8.3
Published
Feb 13, 2009
Tracked Since
Feb 18, 2026