CVE-2009-0362

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    CVE-2009-0362

    Published: 13 Feb 2009Last Modified: 10 Apr 2026

    Summary:

    Details: 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: http://secunia.com/advisories/33890, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=514163, http://www.securityfocus.com/bid/33734

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High