Ubuntu 3247-1: AppArmor vulnerability

    Date28 Mar 2017
    CategoryUbuntu
    54
    Posted ByLinuxSecurity Advisories
    AppArmor could remove the confinement from some programs.
    ==========================================================================
    Ubuntu Security Notice USN-3247-1
    March 28, 2017
    
    apparmor vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    AppArmor could remove the confinement from some programs.
    
    Software Description:
    - apparmor: Linux security system
    
    Details:
    
    Stéphane Graber discovered that AppArmor incorrectly unloaded some profiles
    when restarted or upgraded, contrary to expected behavior.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.10:
      apparmor                        2.10.95-4ubuntu5.3
    
    Ubuntu 16.04 LTS:
      apparmor                        2.10.95-0ubuntu2.6
    
    Ubuntu 14.04 LTS:
      apparmor                        2.10.95-0ubuntu2.6~14.04.1
    
    Ubuntu 12.04 LTS:
      apparmor                        2.7.102-0ubuntu3.11
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    A new utility, called aa-remove-unknown, was added to assist with profiles that
    would have been previously unloaded when AppArmor was restarted or upgraded.
    
    References:
      http://www.ubuntu.com/usn/usn-3247-1
      CVE-2017-6507
    
    Package Information:
      https://launchpad.net/ubuntu/+source/apparmor/2.10.95-4ubuntu5.3
      https://launchpad.net/ubuntu/+source/apparmor/2.10.95-0ubuntu2.6
      https://launchpad.net/ubuntu/+source/apparmor/2.10.95-0ubuntu2.6~14.04.1
      https://launchpad.net/ubuntu/+source/apparmor/2.7.102-0ubuntu3.11
    
    
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