========================================================================== Ubuntu Security Notice USN-1730-1 February 20, 2013 keystone vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.10 - Ubuntu 12.04 LTS Summary: Keystone could be made to crash or expose sensitive information over the network. Software Description: - keystone: OpenStack identity service Details: Nathanael Burton discovered that Keystone did not properly verify disabled users. An authenticated but disabled user would continue to have access rights that were removed. (CVE-2013-0282) Jonathan Murray discovered that Keystone would allow XML entity processing. A remote unauthenticated attacker could exploit this to cause a denial of service via resource exhaustion. Authenticated users could also use this to view arbitrary files on the Keystone server. (CVE-2013-1664, CVE-2013-1665) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.10: python-keystone 2012.2.1-0ubuntu1.2 Ubuntu 12.04 LTS: python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.5 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-1730-1 CVE-2013-0282, CVE-2013-1664, CVE-2013-1665 Package Information: https://launchpad.net/ubuntu/+source/keystone/2012.2.1-0ubuntu1.2 https://launchpad.net/ubuntu/+source/keystone/2012.1+stable~20120824-a16a0ab9-0ubuntu 2.5
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