DEBIAN-CVE-2009-0362

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Source
https://security-tracker.debian.org/tracker/CVE-2009-0362
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0362.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2009-0362
Upstream
Published
2009-02-13T01:30:00Z
Modified
2026-09-17T06:47:30Z
Summary
[none]
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

Affected packages

Debian:12 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.8.3-2sid1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0362.json"

Debian:13 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.8.3-2sid1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0362.json"

Debian:14 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0.8.3-2sid1

Ecosystem specific 

{
    "urgency": "low"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-0362.json"