Ubuntu 1197-3: Firefox and Xulrunner vulnerability

    Date07 Sep 2011
    CategoryUbuntu
    47
    Posted ByLinuxSecurity Advisories
    A certificate authority issued fraudulent certificates.
    ==========================================================================
    Ubuntu Security Notice USN-1197-3
    September 07, 2011
    
    firefox, xulrunner-1.9.2 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    A certificate authority issued fraudulent certificates.
    
    Software Description:
    - firefox: Mozilla Open Source web browser
    - xulrunner-1.9.2: Mozilla Gecko runtime environment
    
    Details:
    
    USN-1197-1 partially addressed an issue with Dutch Certificate Authority
    DigiNotar mis-issuing fraudulent certificates. This update actively
    distrusts the DigiNotar root certificate as well as several intermediary
    certificates. Also included in this list of distrusted certificates are the
    Staat der Nederlanden root certificates.
    
    Original advisory details:
    
     It was discovered that Dutch Certificate Authority DigiNotar, had
     mis-issued multiple fraudulent certificates. These certificates could allow
     an attacker to perform a "man in the middle" (MITM) attack which would make
     the user believe their connection is secure, but is actually being
     monitored.
     
     For the protection of its users, Mozilla has removed the DigiNotar
     certificate. Sites using certificates issued by DigiNotar will need to seek
     another certificate vendor.
     
     We are currently aware of a regression that blocks one of two Staat der
     Nederlanden root certificates which are believed to still be secure. This
     regression is being tracked at https://launchpad.net/bugs/838322.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.04:
      firefox                         6.0.2+build2+nobinonly-0ubuntu0.11.04.1
    
    Ubuntu 10.10:
      firefox                         3.6.22+build2+nobinonly-0ubuntu0.10.10.1
      xulrunner-1.9.2                 1.9.2.22+build2+nobinonly-0ubuntu0.10.10.1
    
    Ubuntu 10.04 LTS:
      firefox                         3.6.22+build2+nobinonly-0ubuntu0.10.04.1
      xulrunner-1.9.2                 1.9.2.22+build2+nobinonly-0ubuntu0.10.04.1
    
    After a standard system upgrade you need to restart Firefox and any
    applications that use Xulrunner to effect the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1197-3
      http://www.ubuntu.com/usn/usn-1197-1
      https://launchpad.net/bugs/838322
    
    Package Information:
      https://launchpad.net/ubuntu/+source/firefox/6.0.2+build2+nobinonly-0ubuntu0.11.04.1
      https://launchpad.net/ubuntu/+source/firefox/3.6.22+build2+nobinonly-0ubuntu0.10.10.1
      https://launchpad.net/ubuntu/+source/xulrunner-1.9.2/1.9.2.22+build2+nobinonly-0ubuntu0.10.10.1
      https://launchpad.net/ubuntu/+source/firefox/3.6.22+build2+nobinonly-0ubuntu0.10.04.1
      https://launchpad.net/ubuntu/+source/xulrunner-1.9.2/1.9.2.22+build2+nobinonly-0ubuntu0.10.04.1
    
    
    
    
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