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USN-1603-1: Ruby vulnerabilities

10 October 2012

Ruby could allow excessive access in untrusted programs.



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


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)

Update instructions

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

Ubuntu 12.04
Ubuntu 11.10
Ubuntu 11.04
Ubuntu 10.04

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

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