CVE-2025-25291

Publication date 12 March 2025

Last updated 3 April 2025

Ubuntu priority

Medium

Why this priority?

ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.

Read the notes from the security team

Status

Package Ubuntu Release Status
ruby-saml 25.04 plucky
Needs evaluation
24.10 oracular
Fixed 1.15.0-1ubuntu0.24.10.2
24.04 LTS noble
Fixed 1.15.0-1ubuntu0.24.04.1+esm1
22.04 LTS jammy
Fixed 1.13.0-1ubuntu0.1+esm1
20.04 LTS focal
Fixed 1.11.0-1ubuntu0.1+esm1
18.04 LTS bionic
Fixed 1.7.2-1ubuntu0.1~esm2
16.04 LTS xenial Ignored risks regression

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Notes

juliaphoebe

The backport involves introducing infrastructure for the idp_multi_cert mechanism, which touches enough files that the backport is unnecessarily risky.