Ubuntu 4049-3: GLib regression

    Date05 Aug 2019
    CategoryUbuntu
    2645
    Posted ByLinuxSecurity Advisories
    USN-4049-1 introduced a regression in GLib.
    ==========================================================================
    Ubuntu Security Notice USN-4049-3
    August 05, 2019
    
    glib2.0 regression
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    USN-4049-1 introduced a regression in GLib.
    
    Software Description:
    - glib2.0: GLib Input, Output and Streaming Library (fam module)
    
    Details:
    
    USN-4049-1 fixed a vulnerability in GLib. The update introduced a regression
    in Ubuntu 16.04 LTS causing a possibly memory leak. This update fixes the problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     It was discovered that GLib created directories and files without properly
     restricting permissions. An attacker could possibly use this issue to access
     sensitive information.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libglib2.0-0                    2.48.2-0ubuntu4.4
      libglib2.0-bin                  2.48.2-0ubuntu4.4
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4049-3
      https://usn.ubuntu.com/4049-1
      https://launchpad.net/bugs/1838890
    
    Package Information:
      https://launchpad.net/ubuntu/+source/glib2.0/2.48.2-0ubuntu4.4
    
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