Ubuntu 2482-1: elfutils vulnerability

    Date22 Jan 2015
    CategoryUbuntu
    34
    Posted ByLinuxSecurity Advisories
    elfutils could be made to overwrite files in the root directory if it receiveda specially crafted file.
    ==========================================================================
    Ubuntu Security Notice USN-2482-1
    January 23, 2015
    
    elfutils vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    elfutils could be made to overwrite files in the root directory if it received
    a specially crafted file.
    
    Software Description:
    - elfutils: collection of utilities to handle ELF objects
    
    Details:
    
    Alexander Cherepanov discovered that libelf1 incorrectly handled certain
    filesystem paths while extracting ar archives. An attacker could use this flaw
    to perform a directory traversal attack on the root directory if the process
    extracting the ar archive has write access to the root directory.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.10:
      libelf1                         0.160-0ubuntu2.1
    
    Ubuntu 14.04 LTS:
      libelf1                         0.158-0ubuntu5.2
    
    Ubuntu 12.04 LTS:
      libelf1                         0.152-1ubuntu3.1
    
    Ubuntu 10.04 LTS:
      libelf1                         0.143-1ubuntu0.1
    
    After a standard system update you need to restart applications using libelf1
    to make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2482-1
      CVE-2014-9447
    
    Package Information:
      https://launchpad.net/ubuntu/+source/elfutils/0.160-0ubuntu2.1
      https://launchpad.net/ubuntu/+source/elfutils/0.158-0ubuntu5.2
      https://launchpad.net/ubuntu/+source/elfutils/0.152-1ubuntu3.1
      https://launchpad.net/ubuntu/+source/elfutils/0.143-1ubuntu0.1
    
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