CVEvulnerability

CVE-2009-0362

4.0 MEDIUM Published 2009-02-13 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-02-13
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
4.0 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:P
Weaknesses
CWE-287

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 configurations

• fail2ban fail2ban 0.8.3

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References