Debian LTS: DLA-1883-1: tomcat8 security update

    Date13 Aug 2019
    Posted ByLinuxSecurity Advisories
    Several minor issues have been fixed in tomcat8, a Java Servlet and JSP engine.
    Package        : tomcat8
    Version        : 8.0.14-1+deb8u15
    CVE ID         : CVE-2016-5388 CVE-2018-8014 CVE-2019-0221
    Debian Bug     : 929895 898935
    Several minor issues have been fixed in tomcat8, a Java Servlet and
    JSP engine.
        Apache Tomcat, when the CGI Servlet is enabled, follows RFC 3875
        section 4.1.18 and therefore does not protect applications from
        the presence of untrusted client data in the HTTP_PROXY
        environment variable, which might allow remote attackers to
        redirect an application's outbound HTTP traffic to an arbitrary
        proxy server via a crafted Proxy header in an HTTP request, aka an
        "httpoxy" issue.  The 'cgi' servlet now has a 'envHttpHeaders'
        parameter to filter environment variables.
        The defaults settings for the CORS filter provided in Apache
        Tomcat are insecure and enable 'supportsCredentials' for all
        origins. It is expected that users of the CORS filter will have
        configured it appropriately for their environment rather than
        using it in the default configuration. Therefore, it is expected
        that most users will not be impacted by this issue.
        The SSI printenv command in Apache Tomcat echoes user provided
        data without escaping and is, therefore, vulnerable to XSS. SSI is
        disabled by default. The printenv command is intended for
        debugging and is unlikely to be present in a production website.
    For Debian 8 "Jessie", these problems have been fixed in version
    We recommend that you upgrade your tomcat8 packages.
    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at:

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