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[USN-2412-1] Ruby vulnerability

Posted on 20 November 2014
Ubuntu Security

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

ruby1.8, ruby1.9.1, ruby2.0, ruby2.1 vulnerability
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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=
=2E
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+really457-3ubunt=
u1.2
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

 

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