Ubuntu 1127-1: usb-creator vulnerability

    Date02 May 2011
    CategoryUbuntu
    36
    Posted ByLinuxSecurity Advisories
    An attacker could use usb-creator to unmount arbitrary disks or perform other unauthorized disk operations.
    ==========================================================================
    Ubuntu Security Notice USN-1127-1
    May 02, 2011
    
    usb-creator vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 11.04
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    
    Summary:
    
    An attacker could use usb-creator to unmount arbitrary disks or perform
    other unauthorized disk operations.
    
    Software Description:
    - usb-creator: create a startup disk using a CD or disc image (common files)
    
    Details:
    
    Evan Broder discovered that usb-creator did not properly enforce
    restrictions when performing privileged disk operations. A local attacker
    could use this flaw to perform certain disk operations, such as unmount
    arbitrary mountpoints.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 11.04:
      usb-creator-common              0.2.28.3
    
    Ubuntu 10.10:
      usb-creator-common              0.2.25.3
    
    Ubuntu 10.04 LTS:
      usb-creator-common              0.2.22.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      CVE-2011-1828
    
    Package Information:
      https://launchpad.net/ubuntu/+source/usb-creator/0.2.28.3
      https://launchpad.net/ubuntu/+source/usb-creator/0.2.25.3
      https://launchpad.net/ubuntu/+source/usb-creator/0.2.22.3
    
    
    
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