Ubuntu 1602-1: Ruby vulnerabilities

    Date10 Oct 2012
    CategoryUbuntu
    34
    Posted ByLinuxSecurity Advisories
    Ruby could allow excessive access in untrusted programs.
    ==========================================================================
    Ubuntu Security Notice USN-1602-1
    October 10, 2012
    
    ruby1.9.1 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    
    Summary:
    
    Ruby could allow excessive access in untrusted programs.
    
    Software Description:
    - ruby1.9.1: Interpreter of object-oriented scripting language Ruby
    
    Details:
    
    Tyler Hicks and Shugo Maeda 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-2012-4464, CVE-2012-4466)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      libruby1.9.1                    1.9.3.0-1ubuntu2.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1602-1
      CVE-2012-4464, CVE-2012-4466
    
    Package Information:
      https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.3
    
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