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Unrated severityNVD Advisory· Published Feb 13, 2009· Updated Jun 16, 2026

CVE-2009-0362

CVE-2009-0362

Description

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.

Affected products

2
  • Fail2ban/Fail2ban2 versions
    cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:fail2ban:fail2ban:0.8.3:*:*:*:*:*:*:*
    • (no CPE)range: =0.8.3

Patches

Vulnerability mechanics

References

3

News mentions

0

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