Ubuntu 1399-1: gdm-guest-session vulnerability

    Date13 Mar 2012
    CategoryUbuntu
    39
    Posted ByLinuxSecurity Advisories
    gdm-guest-session could be made to delete files as the administrator.
    ==========================================================================
    Ubuntu Security Notice USN-1399-1
    March 13, 2012
    
    gdm-guest-session vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    gdm-guest-session could be made to delete files as the administrator.
    
    Software Description:
    - gdm-guest-session: gdm extension for guest session
    
    Details:
    
    Ryan Lortie discovered that gdm-guest-session improperly cleaned out
    certain guest session files. A local attacker could use this issue to
    delete arbitrary files.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.04:
      gdm-guest-session               0.24ubuntu0.1
    
    Ubuntu 10.10:
      gdm-guest-session               0.17ubuntu0.1
    
    Ubuntu 10.04 LTS:
      gdm-guest-session               0.15ubuntu0.1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1399-1
      CVE-2012-0943
    
    Package Information:
      https://launchpad.net/ubuntu/+source/gdm-guest-session/0.24ubuntu0.1
      https://launchpad.net/ubuntu/+source/gdm-guest-session/0.17ubuntu0.1
      https://launchpad.net/ubuntu/+source/gdm-guest-session/0.15ubuntu0.1
    
    
    
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