UBUNTU-CVE-2025-59088

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Source
https://ubuntu.com/security/CVE-2025-59088
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-59088
Upstream
Published
2025-11-12T17:15:00Z
Modified
2026-01-20T18:51:32.617782Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

If kdcproxy receives a request for a realm which does not have server addresses defined in its configuration, by default, it will query SRV records in the DNS zone matching the requested realm name. This creates a server-side request forgery vulnerability, since an attacker could send a request for a realm matching a DNS zone where they created SRV records pointing to arbitrary ports and hostnames (which may resolve to loopback or internal IP addresses). This vulnerability can be exploited to probe internal network topology and firewall rules, perform port scanning, and exfiltrate data. Deployments where the "use_dns" setting is explicitly set to false are not affected.

References

Affected packages

Ubuntu:16.04:LTS
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@0.3.2-1?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.3.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3.2-1",
            "binary_name": "python-kdcproxy"
        },
        {
            "binary_version": "0.3.2-1",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"
Ubuntu:18.04:LTS
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@0.3.2-5?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.3.2-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.3.2-5",
            "binary_name": "python-kdcproxy"
        },
        {
            "binary_version": "0.3.2-5",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"
Ubuntu:20.04:LTS
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@0.4.2-1?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.4-1
0.4.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.4.2-1",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"
Ubuntu:22.04:LTS
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@1.0.0-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.0.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.0-1",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"
Ubuntu:24.04:LTS
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@1.0.0-2?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.0.0-1
1.0.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.0-2",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"
Ubuntu:25.10
python-kdcproxy

Package

Name
python-kdcproxy
Purl
pkg:deb/ubuntu/python-kdcproxy@1.0.0-2?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.0.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.0.0-2",
            "binary_name": "python3-kdcproxy"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-59088.json"