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    Ubuntu 4251-1: Tomcat vulnerabilities

    Date
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    Several security issues were fixed in Tomcat.
    ==========================================================================
    Ubuntu Security Notice USN-4251-1
    January 27, 2020
    
    tomcat8 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Tomcat.
    
    Software Description:
    - tomcat8: Servlet and JSP engine
    
    Details:
    
    It was discovered that Tomcat incorrectly handled the RMI registry when
    configured with the JMX Remote Lifecycle Listener. A local attacker could
    possibly use this issue to obtain credentials and gain complete control
    over the Tomcat instance. (CVE-2019-12418)
    
    It was discovered that Tomcat incorrectly handled FORM authentication. A
    remote attacker could possibly use this issue to perform a session fixation
    attack. (CVE-2019-17563)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libtomcat8-java                 8.0.32-1ubuntu1.11
      tomcat8                         8.0.32-1ubuntu1.11
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4251-1
      CVE-2019-12418, CVE-2019-17563
    
    Package Information:
      https://launchpad.net/ubuntu/+source/tomcat8/8.0.32-1ubuntu1.11
    
    

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