The remote Redhat Enterprise Linux 5 / 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2014:0449 advisory.

    Mozilla Thunderbird is a standalone mail and newsgroup client.

    Several flaws were found in the processing of malformed web content. A web     page containing malicious content could cause Thunderbird to crash or,     potentially, execute arbitrary code with the privileges of the user running     Thunderbird. (CVE-2014-1518, CVE-2014-1524, CVE-2014-1529, CVE-2014-1531)

    A use-after-free flaw was found in the way Thunderbird resolved hosts in     certain circumstances. An attacker could use this flaw to crash Thunderbird     or, potentially, execute arbitrary code with the privileges of the user     running Thunderbird. (CVE-2014-1532)

    An out-of-bounds read flaw was found in the way Thunderbird decoded JPEG     images. Loading an email or a web page containing a specially crafted JPEG     image could cause Thunderbird to crash. (CVE-2014-1523)

    A flaw was found in the way Thunderbird handled browser navigations through     history. An attacker could possibly use this flaw to cause the address bar     of the browser to display a web page name while loading content from an     entirely different web page, which could allow for cross-site scripting     (XSS) attacks. (CVE-2014-1530)

    Red Hat would like to thank the Mozilla project for reporting these issues.
    Upstream acknowledges Bobby Holley, Carsten Book, Christoph Diehl, Gary     Kwong, Jan de Mooij, Jesse Ruderman, Nathan Froyd, Christian Holler,     Abhishek Arya, Mariusz Mlynski, moz_bug_r_a4, Nils, Tyson Smith and Jesse     Schwartzentrube as the original reporters of these issues.

    Note: All of the above issues cannot be exploited by a specially crafted     HTML mail message as JavaScript is disabled by default for mail messages.
    They could be exploited another way in Thunderbird, for example, when     viewing the full remote content of an RSS feed.

    For technical details regarding these flaws, refer to the Mozilla security     advisories for Thunderbird 24.5.0. You can find a link to the Mozilla     advisories in the References section of this erratum.

    All Thunderbird users should upgrade to this updated package, which     contains Thunderbird version 24.5.0, which corrects these issues.
    After installing the update, Thunderbird 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.

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RHEL 5 / 6 : thunderbird (RHSA-2014:0449)

critical Nessus Plugin ID 73782

Version 1.22