Ubuntu Security Notice USN-2412-1
20th November, 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
- ruby1.8
– Object-oriented scripting language - ruby1.9.1
– Object-oriented scripting language - ruby2.0
– Object-oriented scripting language - ruby2.1
– 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 version:
- Ubuntu 14.10:
-
libruby2.1
2.1.2-2ubuntu1.2
-
libruby2.0
2.0.0.484+really457-3ubuntu1.2
-
ruby2.1
2.1.2-2ubuntu1.2
-
ruby2.0
2.0.0.484+really457-3ubuntu1.2
- Ubuntu 14.04 LTS:
-
libruby2.0
2.0.0.484-1ubuntu2.2
-
ruby1.9.1
1.9.3.484-2ubuntu1.2
-
libruby1.9.1
1.9.3.484-2ubuntu1.2
-
ruby2.0
2.0.0.484-1ubuntu2.2
- Ubuntu 12.04 LTS:
-
ruby1.8
1.8.7.352-2ubuntu1.6
-
ruby1.9.1
1.9.3.0-1ubuntu2.10
-
libruby1.8
1.8.7.352-2ubuntu1.6
-
libruby1.9.1
1.9.3.0-1ubuntu2.10
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.