========================================================================== Ubuntu Security Notice USN-7857-1 November 04, 2025
keystone vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 25.04 - Ubuntu 24.04 LTS Summary: OpenStack Keystone could allow unintended access to network services. Software Description: - keystone: OpenStack identity service Details: Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens and s3tokens APIs. A remote attacker could possibly use this issue to obtain unauthorized access and escalate privileges. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 keystone 2:28.0.0-0ubuntu1.1 python3-keystone 2:28.0.0-0ubuntu1.1 Ubuntu 25.04 keystone 2:27.0.0-0ubuntu1.1 python3-keystone 2:27.0.0-0ubuntu1.1 Ubuntu 24.04 LTS keystone 2:25.0.0-0ubuntu1.1 python3-keystone 2:25.0.0-0ubuntu1.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7857-1 https://launchpad.net/bugs/2130629 Package Information: https://launchpad.net/ubuntu/+source/keystone/2:28.0.0-0ubuntu1.1 https://launchpad.net/ubuntu/+source/keystone/2:27.0.0-0ubuntu1.1 https://launchpad.net/ubuntu/+source/keystone/2:25.0.0-0ubuntu1.1
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