Ubuntu 1588-1: Software Properties vulnerability

    Date01 Oct 2012
    CategoryUbuntu
    34
    Posted ByLinuxSecurity Advisories
    Software Properties could be tricked into installing arbitrary PPA GPG keys.
    ==========================================================================
    Ubuntu Security Notice USN-1588-1
    October 01, 2012
    
    software-properties vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    - Ubuntu 11.10
    - Ubuntu 11.04
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Software Properties could be tricked into installing arbitrary PPA GPG keys.
    
    Software Description:
    - software-properties: manage the repositories that you install software
    from
    
    Details:
    
    It was discovered that the apt-add-repository tool incorrectly validated
    PPA GPG keys when importing from a keyserver. If a remote attacker were
    able to perform a man-in-the-middle attack, this flaw could be exploited to
    install altered package repository GPG keys.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      python-software-properties      0.82.7.3
    
    Ubuntu 11.10:
      python-software-properties      0.81.13.5
    
    Ubuntu 11.04:
      python-software-properties      0.80.9.2
    
    Ubuntu 10.04 LTS:
      python-software-properties      0.75.10.3
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1588-1
      https://launchpad.net/bugs/1016643
    
    Package Information:
      https://launchpad.net/ubuntu/+source/software-properties/0.82.7.3
      https://launchpad.net/ubuntu/+source/software-properties/0.81.13.5
      https://launchpad.net/ubuntu/+source/software-properties/0.80.9.2
      https://launchpad.net/ubuntu/+source/software-properties/0.75.10.3
    
    
    
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