1. Ubuntu Security Notices
  2. USN-1780-1

USN-1780-1: Ruby vulnerability

Publication date

25 March 2013

Overview

Ruby could be made to hang if it received specially crafted input.

Releases

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.10 quantal 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
12.04 precise 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
11.10 oneiric ruby1.8 –  1.8.7.352-2ubuntu0.3
libruby1.8 –  1.8.7.352-2ubuntu0.3
10.04 lucid ruby1.8 –  1.8.7.249-2ubuntu0.3
libruby1.8 –  1.8.7.249-2ubuntu0.3

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References

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