DEBIAN-CVE-2009-0362

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    DEBIAN-CVE-2009-0362

    Published: 13 Feb 2009Last Modified: 1 Sept 2026
    Upstream:
    CVE-2009-0362

    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: https://security-tracker.debian.org/tracker/CVE-2009-0362

    Affected packages

    Package

    Name: fail2ban

    Purl: pkg:deb/debian/fail2ban?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.8.3-2sid1

    Affected versions

    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