Ubuntu 3945-1: Ruby vulnerabilities

    Date11 Apr 2019
    CategoryUbuntu
    4484
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Ruby.
    ==========================================================================
    Ubuntu Security Notice USN-3945-1
    April 11, 2019
    
    ruby1.9.1, ruby2.0, ruby2.3, ruby2.5 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in Ruby.
    
    Software Description:
    - ruby2.5: Interpreter of object-oriented scripting language Ruby
    - 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 RubyGems.
    An attacker could possibly use this issue to execute arbitrary
    commands. (CVE-2019-8320)
    
    It was discovered that Ruby incorrectly handled certain inputs.
    An attacker could possibly use this issue to execute arbitrary code.
    (CVE-2019-8321, CVE-2019-8322, CVE-2019-8323, CVE-2019-8324, CVE-2019-8325)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libruby2.5                      2.5.1-5ubuntu4.3
      ruby2.5                         2.5.1-5ubuntu4.3
    
    Ubuntu 18.04 LTS:
      libruby2.5                      2.5.1-1ubuntu1.2
      ruby2.5                         2.5.1-1ubuntu1.2
    
    Ubuntu 16.04 LTS:
      libruby2.3                      2.3.1-2~16.04.12
      ruby2.3                         2.3.1-2~16.04.12
    
    Ubuntu 14.04 LTS:
      libruby1.9.1                    1.9.3.484-2ubuntu1.14
      libruby2.0                      2.0.0.484-1ubuntu2.13
      ruby1.9.1                       1.9.3.484-2ubuntu1.14
      ruby1.9.3                       1.9.3.484-2ubuntu1.14
      ruby2.0                         2.0.0.484-1ubuntu2.13
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3945-1
      CVE-2019-8320, CVE-2019-8321, CVE-2019-8322, CVE-2019-8323,
      CVE-2019-8324, CVE-2019-8325
    
    Package Information:
      https://launchpad.net/ubuntu/+source/ruby2.5/2.5.1-5ubuntu4.3
      https://launchpad.net/ubuntu/+source/ruby2.5/2.5.1-1ubuntu1.2
      https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.12
      https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.14
      https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.13
    
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