UBUNTU-CVE-2025-4444

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Source
https://ubuntu.com/security/CVE-2025-4444
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-4444
Upstream
Published
2025-09-18T14:15:00Z
Modified
2026-08-26T17:30:10Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A security flaw has been discovered in Tor up to 0.4.7.16/0.4.8.17. Impacted is an unknown function of the component Onion Service Descriptor Handler. Performing manipulation results in resource consumption. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is considered difficult. Upgrading to version 0.4.8.18 and 0.4.9.3-alpha is recommended to address this issue. It is recommended to upgrade the affected component.

References

Affected packages

Ubuntu:22.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.4.5.9-1
0.4.6.8-1
0.4.6.8-1build1
0.4.6.9-1
0.4.6.10-1
0.4.9.11-0ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.4.9.11-0ubuntu0.22.04.1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.4.9.11-0ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:24.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=noble

Affected ranges

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

Affected versions

0.*
0.4.8.4-2
0.4.8.7-1
0.4.8.9-1
0.4.8.10-1
0.4.8.10-1build1
0.4.8.10-1build2
0.4.9.11-0ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.4.9.11-0ubuntu0.24.04.1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.4.9.11-0ubuntu0.24.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:25.10
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=questing

Affected ranges

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

Affected versions

0.*
0.4.8.14-1
0.4.8.16-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.4.8.16-1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.4.8.16-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:26.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=resolute

Affected ranges

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

Affected versions

0.*
0.4.8.16-1
0.4.8.21-1
0.4.8.22-1
0.4.9.6-1
0.4.9.11-0ubuntu0.26.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.4.9.11-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.4.9.11-0ubuntu0.26.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:Pro:14.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

0.*
0.2.3.25-1
0.2.4.19-1
0.2.4.20-1
0.2.4.27-1build0.14.04.1
0.2.4.27-1ubuntu0.1
0.2.4.27-1ubuntu0.1+esm1
0.2.4.27-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.2.4.27-1ubuntu0.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:Pro:16.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=esm-apps%2Fxenial

Affected ranges

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

Affected versions

0.*
0.2.6.10-1ubuntu2
0.2.7.6-1ubuntu1
0.2.9.11-1ubuntu1~16.04.1
0.2.9.14-1ubuntu1~16.04.1
0.2.9.14-1ubuntu1~16.04.2
0.2.9.14-1ubuntu1~16.04.3
0.2.9.14-1ubuntu1~16.04.3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.2.9.14-1ubuntu1~16.04.3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:Pro:18.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

0.*
0.3.0.10-1
0.3.1.8-2
0.3.1.9-1
0.3.2.9-1
0.3.2.9-1build1
0.3.2.10-1
0.3.2.10-1ubuntu0.1
0.3.2.10-1ubuntu0.2~esm1
0.3.2.10-1ubuntu0.2~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.3.2.10-1ubuntu0.2~esm2"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.3.2.10-1ubuntu0.2~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"
Ubuntu:Pro:20.04:LTS
tor

Package

Name
tor
Purl
pkg:deb/ubuntu/tor?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

0.*
0.4.1.5-1
0.4.1.5-1build1
0.4.1.6-1
0.4.2.5-1
0.4.2.6-1
0.4.2.7-1
0.4.2.7-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tor",
            "binary_version": "0.4.2.7-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "tor-geoipdb",
            "binary_version": "0.4.2.7-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-4444.json"