Ubuntu 3411-2: Bazaar vulnerability

    Date24 Oct 2017
    CategoryUbuntu
    100
    Posted ByLinuxSecurity Advisories
    Bazaar could be made run programs as your login if it opened a specially crafted URL.
    ==========================================================================
    Ubuntu Security Notice USN-3411-2
    October 24, 2017
    
    bzr vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Bazaar could be made run programs as your login if it opened a
    specially crafted URL.
    
    Software Description:
    - bzr: easy to use distributed version control system
    
    Details:
    
    USN-3411-1 fixed a vulnerability in Bazaar. This update
    provides the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Adam Collard discovered that Bazaar did not properly handle host names
     in 'bzr+ssh://' URLs. A remote attacker could use this to construct
     a bazaar repository URL that when accessed could run arbitrary code
     with the privileges of the user.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      bzr                             2.5.1-0ubuntu2.1
      python-bzrlib                   2.5.1-0ubuntu2.1
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3411-2
      https://www.ubuntu.com/usn/usn-3411-1
      CVE-2017-14176
    
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