========================================================================== Ubuntu Security Notice USN-1641-1 November 28, 2012 keystone vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.10 - Ubuntu 12.04 LTS Summary: Keystone would allow unintended access to files over the network. Software Description: - keystone: OpenStack identity service Details: Vijaya Erukala discovered that Keystone did not properly invalidate EC2-style credentials such that if credentials were removed from a tenant, an authenticated and authorized user using those credentials may still be allowed access beyond the account owner's expectations. (CVE-2012-5571) It was discovered that Keystone did not properly implement token expiration. A remote attacker could use this to continue to access an account that is disabled or has a changed password. This issue was previously fixed as CVE-2012-3426 but was reintroduced in Ubuntu 12.10. (CVE-2012-5563) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.10: python-keystone 2012.2-0ubuntu1.2 Ubuntu 12.04 LTS: python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.3 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1641-1 CVE-2012-5563, CVE-2012-5571 Package Information: https://launchpad.net/ubuntu/+source/keystone/2012.2-0ubuntu1.2 https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu 2.3
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