Ubuntu 3626-1: Ruby vulnerabilities

    Date16 Apr 2018
    CategoryUbuntu
    5744
    Posted ByAnthony Pell
    Several security issues were fixed in Ruby.
    ==========================================================================
    Ubuntu Security Notice USN-3626-1
    April 16, 2018
    
    ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 17.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in Ruby.
    
    Software Description:
    - ruby2.3: Object-oriented scripting language
    - ruby1.9.1: Object-oriented scripting language
    - ruby2.0: Object-oriented scripting language
    
    Details:
    
    It was discovered that Ruby incorrectly handled certain inputs. An
    attacker could possibly use this to execute arbitrary code.
    (CVE-2018-6914)
    
    It was discovered that Ruby incorrectly handled certain inputs. An
    attacker could possibly use this to access sensitive information.
    (CVE-2018-8778, CVE-2018-8780)
    
    It was discovered that Ruby incorrectly handled certain inputs. An
    attacker could possibly use this to connect to an unintended socket.
    (CVE-2018-8779)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 17.10:
      libruby2.3                      2.3.3-1ubuntu1.5
      ruby2.3                         2.3.3-1ubuntu1.5
    
    Ubuntu 16.04 LTS:
      libruby2.3                      2.3.1-2~16.04.9
      ruby2.3                         2.3.1-2~16.04.9
    
    Ubuntu 14.04 LTS:
      libruby1.9.1                    1.9.3.484-2ubuntu1.11
      libruby2.0                      2.0.0.484-1ubuntu2.9
      ruby1.9.1                       1.9.3.484-2ubuntu1.11
      ruby1.9.3                       1.9.3.484-2ubuntu1.11
      ruby2.0                         2.0.0.484-1ubuntu2.9
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3626-1
      CVE-2018-6914, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780
    
    Package Information:
      https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu1.5
      https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.9
      https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.11
      https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.9
    
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