DEBIAN-CVE-2025-45311

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Source
https://security-tracker.debian.org/tracker/CVE-2025-45311
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-45311.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-45311
Upstream
Withdrawn
2025-12-02T22:38:30.108560Z
Published
2025-11-26T16:15:47.663Z
Modified
2025-12-02T22:38:30.108560Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Insecure permissions in fail2ban-client v0.11.2 allows attackers with limited sudo privileges to perform arbitrary operations as root. NOTE: this is disputed by multiple parties because the action for a triggered rule can legitimately be an arbitrary operation as root. Thus, the software is behaving in accordance with its intended privilege model.

References

Affected packages

Debian:11 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.11.2-2
0.11.2-3
0.11.2-4
0.11.2-5
0.11.2-6
1.*
1.0.1-1~exp1
1.0.2-1
1.0.2-2
1.0.2-3
1.1.0-1
1.1.0-2
1.1.0-3
1.1.0-4
1.1.0-6
1.1.0-7
1.1.0-8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-45311.json"

Debian:12 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.2-2
1.0.2-3
1.1.0-1
1.1.0-2
1.1.0-3
1.1.0-4
1.1.0-6
1.1.0-7
1.1.0-8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-45311.json"

Debian:13 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.0-8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-45311.json"

Debian:14 / fail2ban

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1.0-8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-45311.json"