CVE-2009-0362

EUVD-2009-0366
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:S/C:N/I:N/A:P
Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
Affected Products (NVD)
VendorProductVersion
fail2banfail2ban
0.8.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
fail2ban
bookworm
1.0.2-2
fixed
bullseye
0.11.2-2
fixed
sid
1.1.0-7
fixed
trixie
1.1.0-7
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
fail2ban
dapper
ignored
gutsy
ignored
hardy
ignored
intrepid
ignored
jaunty
ignored
karmic
not-affected
lucid
not-affected
maverick
not-affected
natty
not-affected
oneiric
not-affected
Common Weakness Enumeration
References
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163
http://secunia.com/advisories/33890
http://www.securityfocus.com/bid/33734
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163
http://secunia.com/advisories/33890
http://www.securityfocus.com/bid/33734