DoS with large SAML responses has been fixed in ruby-saml, a library implementing the client side of SAML authorization for the Ruby interpreter. . - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4288-1
Several security issues were fixed in Ruby SAML.. ========================================================================== Ubuntu Security Notice USN-7309-1 February 28, 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 properly validate SAML responses. An unauthenticated attacker could use this vulnerability to log in as an abitrary user. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-5697) It was discovered that Ruby SAML incorrectly utilized the results of XML DOM traversal and canonicalization APIs. An unauthenticated attacker could use this vulnerability to log in as an abitrary user. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-11428) It was discovered that Ruby SAML did not properly verify the signature of the SAML Response, allowing multiple elements with the same ID. An unauthenticated attacker could use this vulnerability to log in as an abitrary user. (CVE-2024-45409) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.10 ruby-saml 1.15.0-1ubuntu0.24.10.1 Ubuntu 24.04 LTS ruby-saml 1.15.0-1ubuntu0.24.04.1 Ubuntu 22.04 LTS ruby-saml 1.13.0-1ubuntu0.1 Ubuntu 20.04 LTS ruby-saml 1.11.0-1ubuntu0.1 Ubuntu 18.04 LTS ruby-saml 1.7.2-1ubuntu0.1~esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS ruby-saml 1.1.2-1ubuntu1+esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7309-1 CVE-2016-5697, CVE-2017-11428, CVE-2024-45409 Package Information: https://launchpad.net/ubuntu/+source/ruby-saml/1.15.0-1ubuntu0.24.10.1 https://launchpad.net/ubuntu/+source/ruby-saml/1.15.0-1ubuntu0.24.04.1 https://launchpad.net/ubuntu/+source/ruby-saml/1.13.0-1ubuntu0.1 https://launchpad.net/ubuntu/+source/ruby-saml/1.11.0-1ubuntu0.1 . Crucial enhancements addressing Python SAML security flaws in Ubuntu have been issued to bolster protective measures.. Ruby SAML Security, Ubuntu Security Updates, Ruby Authentication Flaws, Linux Patch Management. . LinuxSecurity.com Team
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