USN-1780-1: Ruby vulnerability

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04

Packages

• ruby1.8 - Object-oriented scripting language
• ruby1.9.1 - Object-oriented scripting language

Details

Ben Murphy discovered that the Ruby REXML library incorrectly handled XML
entity expansion. An attacker could use this flaw to cause Ruby to consume
large amounts of memory, resulting in a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.10

• ruby1.8 - 1.8.7.358-4ubuntu0.2
• ruby1.9.1 - 1.9.3.194-1ubuntu1.4
• libruby1.8 - 1.8.7.358-4ubuntu0.2
• libruby1.9.1 - 1.9.3.194-1ubuntu1.4

Ubuntu 12.04

• ruby1.8 - 1.8.7.352-2ubuntu1.2
• ruby1.9.1 - 1.9.3.0-1ubuntu2.6
• libruby1.8 - 1.8.7.352-2ubuntu1.2
• libruby1.9.1 - 1.9.3.0-1ubuntu2.6

Ubuntu 11.10

• ruby1.8 - 1.8.7.352-2ubuntu0.3
• libruby1.8 - 1.8.7.352-2ubuntu0.3

Ubuntu 10.04

• ruby1.8 - 1.8.7.249-2ubuntu0.3
• libruby1.8 - 1.8.7.249-2ubuntu0.3

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

References

• CVE-2013-1821