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filter.d/wuftpd.conf in Fail2ban 0.8.3 uses an incorrect...

Moderate severity Unreviewed Published May 2, 2022 to the GitHub Advisory Database • Updated Jan 31, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Feb 13, 2009
Published to the GitHub Advisory Database May 2, 2022
Last updated Jan 31, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(68th percentile)

Weaknesses

CVE ID

CVE-2009-0362

GHSA ID

GHSA-rc77-w9xr-6vvf

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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