RHEL 4 / 5 / 6 : firefox (RHSA-2010:0966)

high Nessus Plugin ID 51107



The remote Red Hat host is missing one or more security updates.


Updated firefox packages that fix several security issues are now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Mozilla Firefox is an open source web browser.

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-2010-3766, CVE-2010-3767, CVE-2010-3772, CVE-2010-3776, CVE-2010-3777)

A flaw was found in the way Firefox handled malformed JavaScript. A website with an object containing malicious JavaScript could cause Firefox to execute that JavaScript with the privileges of the user running Firefox. (CVE-2010-3771)

This update adds support for the Sanitiser for OpenType (OTS) library to Firefox. This library helps prevent potential exploits in malformed OpenType fonts by verifying the font file prior to use.

A flaw was found in the way Firefox loaded Java LiveConnect scripts.
Malicious web content could load a Java LiveConnect script in a way that would result in the plug-in object having elevated privileges, allowing it to execute Java code with the privileges of the user running Firefox. (CVE-2010-3775)

It was found that the fix for CVE-2010-0179 was incomplete when the Firebug add-on was used. If a user visited a website containing malicious JavaScript while the Firebug add-on was enabled, it could cause Firefox to execute arbitrary JavaScript with the privileges of the user running Firefox. (CVE-2010-3773)

A flaw was found in the way Firefox presented the location bar to users. A malicious website could trick a user into thinking they are visiting the site reported by the location bar, when the page is actually content controlled by an attacker. (CVE-2010-3774)

A cross-site scripting (XSS) flaw was found in the Firefox x-mac-arabic, x-mac-farsi, and x-mac-hebrew character encodings.
Certain characters were converted to angle brackets when displayed. If server-side script filtering missed these cases, it could result in Firefox executing JavaScript code with the permissions of a different website. (CVE-2010-3770)

For technical details regarding these flaws, refer to the Mozilla security advisories for Firefox 3.6.13. You can find a link to the Mozilla advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain Firefox version 3.6.13, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.


Update the affected packages.

See Also















Plugin Details

Severity: High

ID: 51107

File Name: redhat-RHSA-2010-0966.nasl

Version: 1.26

Type: local

Agent: unix

Published: 12/10/2010

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:firefox, p-cpe:/a:redhat:enterprise_linux:firefox-debuginfo, p-cpe:/a:redhat:enterprise_linux:xulrunner, p-cpe:/a:redhat:enterprise_linux:xulrunner-debuginfo, p-cpe:/a:redhat:enterprise_linux:xulrunner-devel, cpe:/o:redhat:enterprise_linux:4, cpe:/o:redhat:enterprise_linux:4.8, cpe:/o:redhat:enterprise_linux:5, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/9/2010

Vulnerability Publication Date: 12/10/2010

Reference Information

CVE: CVE-2010-3766, CVE-2010-3767, CVE-2010-3768, CVE-2010-3770, CVE-2010-3771, CVE-2010-3772, CVE-2010-3773, CVE-2010-3774, CVE-2010-3775, CVE-2010-3776, CVE-2010-3777

BID: 45314, 45322, 45324, 45326, 45352, 45354

RHSA: 2010:0966