The remote Redhat Enterprise Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:1482 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-2012-4214, CVE-2012-4215, CVE-2012-4216, CVE-2012-5829,     CVE-2012-5830, CVE-2012-5833, CVE-2012-5835, CVE-2012-5839, CVE-2012-5840,     CVE-2012-5842)

    A buffer overflow flaw was found in the way Firefox handled GIF (Graphics     Interchange Format) images. A web page containing a malicious GIF image     could cause Firefox to crash or, possibly, execute arbitrary code with the     privileges of the user running Firefox. (CVE-2012-4202)

    A flaw was found in the way the Style Inspector tool in Firefox handled     certain Cascading Style Sheets (CSS). Running the tool (Tools -> Web     Developer -> Inspect) on malicious CSS could result in the execution of     HTML and CSS content with chrome privileges. (CVE-2012-4210)

    A flaw was found in the way Firefox decoded the HZ-GB-2312 character     encoding. A web page containing malicious content could cause Firefox to     run JavaScript code with the permissions of a different website.
    (CVE-2012-4207)

    A flaw was found in the location object implementation in Firefox.
    Malicious content could possibly use this flaw to allow restricted content     to be loaded by plug-ins. (CVE-2012-4209)

    A flaw was found in the way cross-origin wrappers were implemented.
    Malicious content could use this flaw to perform cross-site scripting     attacks. (CVE-2012-5841)

    A flaw was found in the evalInSandbox implementation in Firefox. Malicious     content could use this flaw to perform cross-site scripting attacks.
    (CVE-2012-4201)

    For technical details regarding these flaws, refer to the Mozilla security     advisories for Firefox 10.0.11 ESR. You can find a link to the Mozilla     advisories in the References section of this erratum.

    Red Hat would like to thank the Mozilla project for reporting these issues.
    Upstream acknowledges Abhishek Arya, miaubiz, Jesse Ruderman, Andrew     McCreight, Bob Clary, Kyle Huey, Atte Kettunen, Mariusz Mlynski, Masato     Kinugawa, Bobby Holley, and moz_bug_r_a4 as the original reporters of these     issues.

    All Firefox users should upgrade to these updated packages, which contain     Firefox version 10.0.11 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 : firefox (RHSA-2012:1482)

high Nessus Plugin ID 62980

Version 1.31