The remote Redhat Enterprise Linux 5 / 6 / 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2016:0071 advisory.

    Mozilla Firefox is an open source web browser. XULRunner provides the XUL     Runtime environment for Mozilla Firefox.

    Several flaws were found in the processing of malformed web content. A web     page containing malicious content could cause Firefox to crash or,     potentially, execute arbitrary code with the privileges of the user running     Firefox. (CVE-2016-1930, CVE-2016-1935)

    Red Hat would like to thank the Mozilla project for reporting these issues.
    Upstream acknowledges Bob Clary, Christian Holler, Nils Ohlmeier, Gary     Kwong, Jesse Ruderman, Carsten Book, Randell Jesup, and Aki Helin as the     original reporters of these issues.

    All Firefox users should upgrade to these updated packages, which contain     Firefox version 38.6.0 ESR, which corrects these issues. After installing     the update, Firefox must be restarted for the changes to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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RHEL 5 / 6 / 7 : firefox (RHSA-2016:0071)

critical Nessus Plugin ID 88406

Version 2.23