--- title: "CVE-2025-25293\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2025-25293?format=md keywords: index, follow --- # CVE-2025-25293 Publication date 12 March 2025 Last updated 3 April 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | ruby-saml | 26.04 LTS resolute | Not in release | | 25.10 questing | Not in release | | 25.04 plucky | Ignored end of life, was needs-triage | | 24.10 oracular | Fixed 1.15.0-1ubuntu0.24.10.2 | | 24.04 LTS noble | Fixed 1.15.0-1ubuntu0.24.04.1+esm1 Ubuntu Pro | | 22.04 LTS jammy | Fixed 1.13.0-1ubuntu0.1+esm1 Ubuntu Pro | | 20.04 LTS focal | Fixed 1.11.0-1ubuntu0.1+esm1 Ubuntu Pro | | 18.04 LTS bionic | Fixed 1.7.2-1ubuntu0.1~esm2 Ubuntu Pro | | 16.04 LTS xenial | Fixed 1.1.2-1ubuntu1+esm2 Ubuntu Pro | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ### Get expanded security coverage with Ubuntu Pro Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use. [Get Ubuntu Pro](https://ubuntu.com/pro) [30-day free trial](https://ubuntu.com/pro/free-trial) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-25293) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-25293) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-25293) * [Debian](https://security-tracker.debian.org/tracker/CVE-2025-25293) ### Related Ubuntu Security Notices (USN) + [USN-7409-1](https://usn.ubuntu.com/USN-7409-1) + RubySAML vulnerabilities + 2 April 2025 ### Other references * * * * * * * * *