UBUNTU-CVE-2025-66567

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Source
https://ubuntu.com/security/CVE-2025-66567
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-66567
Upstream
Published
2025-12-09T16:18:00Z
Modified
2025-12-12T08:59:11.255890Z
Severity
  • 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The ruby-saml library is for implementing the client side of a SAML authorization. ruby-saml versions up to and including 1.12.4 contain an authentication bypass vulnerability due to an incomplete fix for CVE-2025-25292. ReXML and Nokogiri parse XML differently, generating entirely different document structures from the same input. This allows an attacker to execute a Signature Wrapping attack. This issue is fixed in version 1.18.0.

References

Affected packages

Ubuntu:25.04

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.17.0-1?arch=source&distro=plucky

Affected ranges

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

Affected versions

1.*

1.15.0-1
1.17.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.17.0-1",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"

Ubuntu:Pro:16.04:LTS

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.1.2-1ubuntu1+esm2?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

0.*

0.9.2-1

1.*

1.0.0-1
1.1.2-1ubuntu1
1.1.2-1ubuntu1+esm1
1.1.2-1ubuntu1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.1.2-1ubuntu1+esm2",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"

Ubuntu:Pro:18.04:LTS

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.7.2-1ubuntu0.1~esm2?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*

1.4.1-1
1.7.2-1
1.7.2-1ubuntu0.1~esm1
1.7.2-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.7.2-1ubuntu0.1~esm2",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"

Ubuntu:Pro:20.04:LTS

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.11.0-1ubuntu0.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

1.*

1.7.2-1
1.11.0-1
1.11.0-1ubuntu0.1
1.11.0-1ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.11.0-1ubuntu0.1+esm1",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"

Ubuntu:Pro:22.04:LTS

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.13.0-1ubuntu0.1+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

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

Affected versions

1.*

1.11.0-1
1.13.0-1
1.13.0-1ubuntu0.1
1.13.0-1ubuntu0.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.13.0-1ubuntu0.1+esm1",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"

Ubuntu:Pro:24.04:LTS

ruby-saml

Package

Name
ruby-saml
Purl
pkg:deb/ubuntu/ruby-saml@1.15.0-1ubuntu0.24.04.1+esm1?arch=source&distro=esm-apps/noble

Affected ranges

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

Affected versions

1.*

1.15.0-1
1.15.0-1ubuntu0.24.04.1
1.15.0-1ubuntu0.24.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.15.0-1ubuntu0.24.04.1+esm1",
            "binary_name": "ruby-saml"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66567.json"