USN-7364-1: OpenSAML vulnerability

Publication date

21 March 2025

Overview

OpenSAML and OpenSAML2 could have their authentication systems bypassed.


Packages

  • opensaml - Security Assertion Markup Language library (development)
  • opensaml2 - Security Assertion Markup Language library (development)

Details

Alexander Tan discovered that the OpenSAML C++ library was susceptible to
forging of signed SAML messages. An attacker could possibly use this issue
to gain unauthorized access to a system and manipulate sensitive
information.

Alexander Tan discovered that the OpenSAML C++ library was susceptible to
forging of signed SAML messages. An attacker could possibly use this issue
to gain unauthorized access to a system and manipulate sensitive
information.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
25.04 plucky libsaml-dev –  3.3.0-2ubuntu1
libsaml13 –  3.3.0-2ubuntu1
opensaml-schemas –  3.3.0-2ubuntu1
opensaml-tools –  3.3.0-2ubuntu1
24.10 oracular libsaml-dev –  3.2.1-4.1ubuntu0.24.10.1
libsaml12t64 –  3.2.1-4.1ubuntu0.24.10.1
opensaml-schemas –  3.2.1-4.1ubuntu0.24.10.1
opensaml-tools –  3.2.1-4.1ubuntu0.24.10.1
24.04 noble libsaml-dev –  3.2.1-4.1ubuntu0.24.04.1
libsaml12t64 –  3.2.1-4.1ubuntu0.24.04.1
opensaml-schemas –  3.2.1-4.1ubuntu0.24.04.1
opensaml-tools –  3.2.1-4.1ubuntu0.24.04.1
22.04 jammy libsaml-dev –  3.2.1-1ubuntu0.1
libsaml12 –  3.2.1-1ubuntu0.1
opensaml-schemas –  3.2.1-1ubuntu0.1
opensaml-tools –  3.2.1-1ubuntu0.1
20.04 focal libsaml-dev –  3.0.1-1ubuntu0.1
libsaml10 –  3.0.1-1ubuntu0.1
opensaml-schemas –  3.0.1-1ubuntu0.1
opensaml-tools –  3.0.1-1ubuntu0.1
18.04 bionic libsaml2-dev –  2.6.1-1ubuntu0.1~esm1  
libsaml9 –  2.6.1-1ubuntu0.1~esm1  
opensaml2-schemas –  2.6.1-1ubuntu0.1~esm1  
opensaml2-tools –  2.6.1-1ubuntu0.1~esm1  
16.04 xenial libsaml2-dev –  2.5.5-1ubuntu0.1+esm1  
libsaml8v5 –  2.5.5-1ubuntu0.1+esm1  
opensaml2-schemas –  2.5.5-1ubuntu0.1+esm1  
opensaml2-tools –  2.5.5-1ubuntu0.1+esm1  

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