Ubuntu 13.04 USN-1902-1 Medium: Ruby SSL Trust Vulnerability Issue

ubuntu

July 9, 2013

An attacker could trick Ruby into trusting a rogue server.

Summary

An attacker could trick Ruby into trusting a rogue server.

Software Description:

- ruby1.8: Object-oriented scripting language

- ruby1.9.1: Object-oriented scripting language

Details:

William (B.J.) Snow Orvis discovered that Ruby incorrectly verified the

hostname in SSL certificates. An attacker could trick Ruby into trusting a

rogue server certificate, which was signed by a trusted certificate

authority, to perform a man-in-the-middle attack.

Topics Covered

security advisory medium severity ubuntu ruby man-in-the-middle SSL trust issue rogue server

Update Instructions

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

Ubuntu 13.04:
  libruby1.8                      1.8.7.358-7ubuntu1.1
  libruby1.9.1                    1.9.3.194-8.1ubuntu1.1
  ruby1.8                         1.8.7.358-7ubuntu1.1
  ruby1.9.1                       1.9.3.194-8.1ubuntu1.1

Ubuntu 12.10:
  libruby1.8                      1.8.7.358-4ubuntu0.3
  libruby1.9.1                    1.9.3.194-1ubuntu1.5
  ruby1.8                         1.8.7.358-4ubuntu0.3
  ruby1.9.1                       1.9.3.194-1ubuntu1.5

Ubuntu 12.04 LTS:
  libruby1.8                      1.8.7.352-2ubuntu1.3
  libruby1.9.1                    1.9.3.0-1ubuntu2.7
  ruby1.8                         1.8.7.352-2ubuntu1.3
  ruby1.9.1                       1.9.3.0-1ubuntu2.7

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