CVE-2009-0362

MediumCVSS 4.0/10Last modified Jun 16, 2026

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.

Metrics

CVSS 2.0 4.0/10AV:N/AC:L/Au:S/C:N/I:N/A:P

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Feb 13, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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