Linux Security
    Linux Security
    Linux Security

    Ubuntu 4010-1: Exim vulnerability

    Date 05 Jun 2019
    113
    Posted By LinuxSecurity Advisories
    Exim could be made to run commands if it received specially crafted network traffic.
    ==========================================================================
    Ubuntu Security Notice USN-4010-1
    June 05, 2019
    
    exim4 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    
    Summary:
    
    Exim could be made to run commands if it received specially crafted network
    traffic.
    
    Software Description:
    - exim4: Exim is a mail transport agent
    
    Details:
    
    It was discovered that Exim incorrectly handled certain decoding
    operations. A remote attacker could possibly use this issue to execute
    arbitrary commands.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      exim4-daemon-heavy              4.91-6ubuntu1.1
      exim4-daemon-light              4.91-6ubuntu1.1
    
    Ubuntu 18.04 LTS:
      exim4-daemon-heavy              4.90.1-1ubuntu1.2
      exim4-daemon-light              4.90.1-1ubuntu1.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4010-1
      CVE-2019-10149
    
    Package Information:
      https://launchpad.net/ubuntu/+source/exim4/4.91-6ubuntu1.1
      https://launchpad.net/ubuntu/+source/exim4/4.90.1-1ubuntu1.2
    
    

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