Ubuntu 3939-1: Samba vulnerability

    Date08 Apr 2019
    CategoryUbuntu
    958
    Posted ByLinuxSecurity Advisories
    Samba could be made to create files in unexpected locations.
    ==========================================================================
    Ubuntu Security Notice USN-3939-1
    April 08, 2019
    
    samba vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Samba could be made to create files in unexpected locations.
    
    Software Description:
    - samba: SMB/CIFS file, print, and login server for Unix
    
    Details:
    
    Michael Hanselmann discovered that Samba incorrectly handled registry
    files. A remote attacker could possibly use this issue to create new
    registry files outside of the share, contrary to expectations.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libsmbclient                    2:4.8.4+dfsg-2ubuntu2.3
      samba                           2:4.8.4+dfsg-2ubuntu2.3
    
    Ubuntu 18.04 LTS:
      libsmbclient                    2:4.7.6+dfsg~ubuntu-0ubuntu2.9
      samba                           2:4.7.6+dfsg~ubuntu-0ubuntu2.9
    
    Ubuntu 16.04 LTS:
      libsmbclient                    2:4.3.11+dfsg-0ubuntu0.16.04.19
      samba                           2:4.3.11+dfsg-0ubuntu0.16.04.19
    
    Ubuntu 14.04 LTS:
      libsmbclient                    2:4.3.11+dfsg-0ubuntu0.14.04.20
      samba                           2:4.3.11+dfsg-0ubuntu0.14.04.20
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3939-1
      CVE-2019-3880
    
    Package Information:
      https://launchpad.net/ubuntu/+source/samba/2:4.8.4+dfsg-2ubuntu2.3
      https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~ubuntu-0ubuntu2.9
      https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.19
      https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.14.04.20
    
    
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