UBUNTU-CVE-2025-66568

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2025-66568
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-66568.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-66568
Upstream
Published
2025-12-09T16:18:00Z
Modified
2025-12-12T08:59:11.711703Z
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 implements the client side of an SAML authorization. Versions up to and including 1.12.4, are vulnerable to authentication bypass through the libxml2 canonicalization process used by Nokogiri for document transformation, which allows an attacker to execute a Signature Wrapping attack. When libxml2’s canonicalization is invoked on an invalid XML input, it may return an empty string rather than a canonicalized node. ruby-saml then proceeds to compute the DigestValue over this empty string, treating it as if canonicalization succeeded. 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_name": "ruby-saml",
            "binary_version": "1.17.0-1"
        }
    ]
}

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_name": "ruby-saml",
            "binary_version": "1.1.2-1ubuntu1+esm2"
        }
    ]
}

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_name": "ruby-saml",
            "binary_version": "1.7.2-1ubuntu0.1~esm2"
        }
    ]
}

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_name": "ruby-saml",
            "binary_version": "1.11.0-1ubuntu0.1+esm1"
        }
    ]
}

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_name": "ruby-saml",
            "binary_version": "1.13.0-1ubuntu0.1+esm1"
        }
    ]
}

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_name": "ruby-saml",
            "binary_version": "1.15.0-1ubuntu0.24.04.1+esm1"
        }
    ]
}