Ubuntu 12.04 LTS USN-1603-1 Moderate: Ruby Excessive Access Threat

ubuntu

October 10, 2012

Ruby could allow excessive access in untrusted programs.

Summary

Ruby could allow excessive access in untrusted programs.

Software Description:

- ruby1.8: Interpreter of object-oriented scripting language Ruby 1.8

Details:

Shugo Maedo and Vit Ondruch discovered that Ruby incorrectly allowed untainted

strings to be modified in protective safe levels. An attacker could use this

flaw to bypass intended access restrictions. (CVE-2012-4466, CVE-2012-4481)

Topics Covered

security advisory access flaw Ubuntu update instructions moderate issue ruby access

Update Instructions

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

Ubuntu 12.04 LTS:
  libruby1.8                      1.8.7.352-2ubuntu1.1

Ubuntu 11.10:
  libruby1.8                      1.8.7.352-2ubuntu0.2

Ubuntu 11.04:
  libruby1.8                      1.8.7.302-2ubuntu0.2

Ubuntu 10.04 LTS:
  libruby1.8                      1.8.7.249-2ubuntu0.2

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