============================================================================ Ubuntu Security Notice USN-2397-1 November 04, 2014 ruby1.8, ruby1.9.1, ruby2.0, ruby2.1 vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS Summary: Several security issues were fixed in Ruby. Software Description: - ruby2.0: Object-oriented scripting language - ruby2.1: Object-oriented scripting language - ruby1.9.1: Object-oriented scripting language - ruby1.8: Object-oriented scripting language Details: Will Wood discovered that Ruby incorrectly handled the encodes() function. An attacker could possibly use this issue to cause Ruby to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service. (CVE-2014-4975) Willis Vandevanter discovered that Ruby incorrectly handled XML entity expansion. An attacker could use this flaw to cause Ruby to consume large amounts of resources, resulting in a denial of service. (CVE-2014-8080) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: libruby2.0 2.0.0.484+really457-3ubuntu1.1 libruby2.1 2.1.2-2ubuntu1.1 ruby2.0 2.0.0.484+really457-3ubuntu1.1 ruby2.1 2.1.2-2ubuntu1.1 Ubuntu 14.04 LTS: libruby1.9.1 1.9.3.484-2ubuntu1.1 libruby2.0 2.0.0.484-1ubuntu2.1 ruby1.9.1 1.9.3.484-2ubuntu1.1 ruby2.0 2.0.0.484-1ubuntu2.1 Ubuntu 12.04 LTS: libruby1.8 1.8.7.352-2ubuntu1.5 libruby1.9.1 1.9.3.0-1ubuntu2.9 ruby1.8 1.8.7.352-2ubuntu1.5 ruby1.9.1 1.9.3.0-1ubuntu2.9 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2397-1 CVE-2014-4975, CVE-2014-8080 Package Information: https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484+really457-3ubuntu1.1 https://launchpad.net/ubuntu/+source/ruby2.1/2.1.2-2ubuntu1.1 https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.1 https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.1 https://launchpad.net/ubuntu/+source/ruby1.8/1.8.7.352-2ubuntu1.5 https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.9