Linux Security
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    Ubuntu 3955-1: tcpflow vulnerabilities

    Date
    2928
    Posted By
    tcpflow could be made to crash or expose sensitive information over the network if it opened a specially crafted file or received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-3955-1
    April 24, 2019
    
    tcpflow vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    tcpflow could be made to crash or expose sensitive information over the network
    if it opened a specially crafted file or received specially crafted network
    traffic.
    
    Software Description:
    - tcpflow: TCP flow recorder
    
    Details:
    
    It was discovered that tcpflow incorrectly handled certain malformed network 
    packets. A remote attacker could send these packets to a target system, causing
    tcpflow to crash or possibly disclose sensitive information.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      tcpflow                         1.4.5+repack1-4ubuntu0.18.10.1
      tcpflow-nox                     1.4.5+repack1-4ubuntu0.18.10.1
    
    Ubuntu 18.04 LTS:
      tcpflow                         1.4.5+repack1-4ubuntu0.18.04.1
      tcpflow-nox                     1.4.5+repack1-4ubuntu0.18.04.1
    
    Ubuntu 16.04 LTS:
      tcpflow                         1.4.5+repack1-1ubuntu0.1
      tcpflow-nox                     1.4.5+repack1-1ubuntu0.1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3955-1
      CVE-2018-14938, CVE-2018-18409
    
    Package Information:
      https://launchpad.net/ubuntu/+source/tcpflow/1.4.5+repack1-4ubuntu0.18.10.1
      https://launchpad.net/ubuntu/+source/tcpflow/1.4.5+repack1-4ubuntu0.18.04.1
      https://launchpad.net/ubuntu/+source/tcpflow/1.4.5+repack1-1ubuntu0.1
    
    

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