Ubuntu 2768-1: Firefox vulnerability

    Date16 Oct 2015
    CategoryUbuntu
    40
    Posted ByLinuxSecurity Advisories
    Firefox could be made to expose sensitive information across origins
    ==========================================================================
    Ubuntu Security Notice USN-2768-1
    October 16, 2015
    
    firefox vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 15.04
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    Firefox could be made to expose sensitive information across origins
    
    Software Description:
    - firefox: Mozilla Open Source web browser
    
    Details:
    
    Abdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did
    not correctly implement the Cross Origin Resource Sharing (CORS)
    specification. If a user were tricked in to opening a specially crafted
    website, an attacker could potentially exploit this to obtain sensitive
    information from other origins. (CVE-2015-7184)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 15.04:
      firefox                         41.0.2+build2-0ubuntu0.15.04.1
    
    Ubuntu 14.04 LTS:
      firefox                         41.0.2+build2-0ubuntu0.14.04.1
    
    Ubuntu 12.04 LTS:
      firefox                         41.0.2+build2-0ubuntu0.12.04.1
    
    After a standard system update you need to restart Firefox to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2768-1
      CVE-2015-7184
    
    Package Information:
      https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.15.04.1
      https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.14.04.1
      https://launchpad.net/ubuntu/+source/firefox/41.0.2+build2-0ubuntu0.12.04.1
    
    
    
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