Scientific Linux Security Update : firefox on SL5.x, SL6.x i386/x86_64

This script is Copyright (C) 2012-2015 Tenable Network Security, Inc.

Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

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-2012-3982, CVE-2012-3988, CVE-2012-3990,
CVE-2012-3995, CVE-2012-4179, CVE-2012-4180, CVE-2012-4181,
CVE-2012-4182, CVE-2012-4183, CVE-2012-4185, CVE-2012-4186,
CVE-2012-4187, CVE-2012-4188)

Two flaws in Firefox could allow a malicious website to bypass
intended restrictions, possibly leading to information disclosure, or
Firefox executing arbitrary code. Note that the information disclosure
issue could possibly be combined with other flaws to achieve arbitrary
code execution. (CVE-2012-3986, CVE-2012-3991)

Multiple flaws were found in the location object implementation in
Firefox. Malicious content could be used to perform cross-site
scripting attacks, script injection, or spoofing attacks.
(CVE-2012-1956, CVE-2012-3992, CVE-2012-3994)

Two flaws were found in the way Chrome Object Wrappers were
implemented. Malicious content could be used to perform cross-site
scripting attacks or cause Firefox to execute arbitrary code.
(CVE-2012-3993, CVE-2012-4184)

For technical details regarding these flaws, refer to the Mozilla
security advisories for Firefox 10.0.8 ESR.

This update also fixes the following bug :

- In certain environments, storing personal Firefox
configuration files (~/.mozilla/) on an NFS share, such
as when your home directory is on a NFS share, led to
Firefox functioning incorrectly, for example, navigation
buttons not working as expected, and bookmarks not
saving. This update adds a new configuration option,
storage.nfs_filesystem, that can be used to resolve this

If you experience this issue :

1) Start Firefox.

2) Type 'about:config' (without quotes) into the URL bar and press the
Enter key.

3) If prompted with 'This might void your warranty!', click the 'I'll
be careful, I promise!' button.

4) Right-click in the Preference Name list. In the menu that opens,
select New -> Boolean.

5) Type 'storage.nfs_filesystem' (without quotes) for the preference
name and then click the OK button.

6) Select 'true' for the boolean value and then press the OK button.

After installing the update, Firefox must be restarted for the changes
to take effect.

See also :

Solution :

Update the affected firefox, xulrunner and / or xulrunner-devel

Risk factor :

Critical / CVSS Base Score : 10.0
Public Exploit Available : true

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