[USN-7409-1] RubySAML vulnerabilities

[Julia Sarris]

==========================================================================

Ubuntu Security Notice USN-7409-1
April 02, 2025

ruby-saml vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in ruby-saml.

Software Description:
- ruby-saml: SAML toolkit for Ruby on Rails

Details:

It was discovered that ruby-saml did not correctly handle XML parsing.
An attacker could possibly use this issue to perform a signature
wrapping attack and bypass authentication. (CVE-2025-25291
and CVE-2025-25292)

It was discovered that ruby-saml did not correctly handle decompressing
SAML responses. An attacker could possibly use this issue to cause
a denial of service. (CVE-2025-25293)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.10
   ruby-saml                       1.15.0-1ubuntu0.24.10.2

Ubuntu 24.04 LTS
   ruby-saml                       1.15.0-1ubuntu0.24.04.1+esm1
                                   Available with Ubuntu Pro

Ubuntu 22.04 LTS
   ruby-saml                       1.13.0-1ubuntu0.1+esm1
                                   Available with Ubuntu Pro

Ubuntu 20.04 LTS
   ruby-saml                       1.11.0-1ubuntu0.1+esm1
                                   Available with Ubuntu Pro

Ubuntu 18.04 LTS
   ruby-saml                       1.7.2-1ubuntu0.1~esm2
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   ruby-saml                       1.1.2-1ubuntu1+esm2
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-7409-1 
<https://ubuntu.com/security/notices/USN-7409-1>
   CVE-2025-25291, CVE-2025-25292, CVE-2025-25293

Package Information:
https://launchpad.net/ubuntu/+source/ruby-saml/1.15.0-1ubuntu0.24.10.2 
<https://launchpad.net/ubuntu/+source/ruby-saml/1.15.0-1ubuntu0.24.10.2>
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