Ubuntu 2257-1: Samba vulnerabilities

    Date26 Jun 2014
    CategoryUbuntu
    45
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Samba.
    ==========================================================================
    Ubuntu Security Notice USN-2257-1
    June 26, 2014
    
    samba vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 LTS
    - Ubuntu 13.10
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Several security issues were fixed in Samba.
    
    Software Description:
    - samba: SMB/CIFS file, print, and login server for Unix
    
    Details:
    
    Christof Schmitt discovered that Samba incorrectly initialized a certain
    response field when vfs shadow copy was enabled. A remote authenticated
    attacker could use this issue to possibly obtain sensitive information.
    This issue only affected Ubuntu 13.10 and Ubuntu 14.04 LTS. (CVE-2014-0178)
    
    It was discovered that the Samba internal DNS server incorrectly handled QR
    fields when processing incoming DNS messages. A remote attacker could use
    this issue to cause Samba to consume resources, resulting in a denial of
    service. This issue only affected Ubuntu 14.04 LTS. (CVE-2014-0239)
    
    Daniel Berteaud discovered that the Samba NetBIOS name service daemon
    incorrectly handled certain malformed packets. A remote attacker could use
    this issue to cause Samba to consume resources, resulting in a denial of
    service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 13.10, and
    Ubuntu 14.04 LTS. (CVE-2014-0244)
    
    Simon Arlott discovered that Samba incorrectly handled certain unicode path
    names. A remote authenticated attacker could use this issue to cause Samba
    to stop responding, resulting in a denial of service. (CVE-2014-3493)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 LTS:
      samba                           2:4.1.6+dfsg-1ubuntu2.14.04.2
    
    Ubuntu 13.10:
      samba                           2:3.6.18-1ubuntu3.3
    
    Ubuntu 12.04 LTS:
      samba                           2:3.6.3-2ubuntu2.11
    
    Ubuntu 10.04 LTS:
      samba                           2:3.4.7~dfsg-1ubuntu3.15
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2257-1
      CVE-2014-0178, CVE-2014-0239, CVE-2014-0244, CVE-2014-3493
    
    Package Information:
      https://launchpad.net/ubuntu/+source/samba/2:4.1.6+dfsg-1ubuntu2.14.04.2
      https://launchpad.net/ubuntu/+source/samba/2:3.6.18-1ubuntu3.3
      https://launchpad.net/ubuntu/+source/samba/2:3.6.3-2ubuntu2.11
      https://launchpad.net/ubuntu/+source/samba/2:3.4.7~dfsg-1ubuntu3.15
    
    
    
    
    
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