==========================================================================
Ubuntu Security Notice USN-2412-1
November 20, 2014

ruby1.8, ruby1.9.1, ruby2.0, ruby2.1 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary:

Ruby could be made to consume resources.

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:

Tomas Hoger 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.

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+really457-3ubuntu1.2
libruby2.1 2.1.2-2ubuntu1.2
ruby2.0 2.0.0.484+really457-3ubuntu1.2
ruby2.1 2.1.2-2ubuntu1.2

Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.2
libruby2.0 2.0.0.484-1ubuntu2.2
ruby1.9.1 1.9.3.484-2ubuntu1.2
ruby2.0 2.0.0.484-1ubuntu2.2

Ubuntu 12.04 LTS:
libruby1.8 1.8.7.352-2ubuntu1.6
libruby1.9.1 1.9.3.0-1ubuntu2.10
ruby1.8 1.8.7.352-2ubuntu1.6
ruby1.9.1 1.9.3.0-1ubuntu2.10

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2412-1
CVE-2014-8090

Package Information:
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484+really457-3ubuntu1.2
https://launchpad.net/ubuntu/+source/ruby2.1/2.1.2-2ubuntu1.2
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.2
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.2
https://launchpad.net/ubuntu/+source/ruby1.8/1.8.7.352-2ubuntu1.6
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.10

– ubuntu-security-announce mailing list [email protected] Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce