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RHN Errata Alert: Critical: firefox security update

Red Hat Network has determined that the following advisory is applicable to
one or more of the systems you have registered:

Complete information about this errata can be found at the following location:
     https://rhn.redhat.com/rhn/errata/details/Details.do?eid=9283

Security Advisory - RHSA-2009:1530-1
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Summary:
Critical: firefox security update

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

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

Description:
Mozilla Firefox is an open source Web browser. XULRunner provides the XUL
Runtime environment for Mozilla Firefox. nspr provides the Netscape
Portable Runtime (NSPR).

A flaw was found in the way Firefox handles form history. A malicious web
page could steal saved form data by synthesizing input events, causing the
browser to auto-fill form fields (which could then be read by an attacker).
(CVE-2009-3370)

A flaw was found in the way Firefox creates temporary file names for
downloaded files. If a local attacker knows the name of a file Firefox is
going to download, they can replace the contents of that file with
arbitrary contents. (CVE-2009-3274)

A flaw was found in the Firefox Proxy Auto-Configuration (PAC) file
processor. If Firefox loads a malicious PAC file, it could crash Firefox
or, potentially, execute arbitrary code with the privileges of the user
running Firefox. (CVE-2009-3372)

A heap-based buffer overflow flaw was found in the Firefox GIF image
processor. A malicious GIF image could crash Firefox or, potentially,
execute arbitrary code with the privileges of the user running Firefox.
(CVE-2009-3373)

A heap-based buffer overflow flaw was found in the Firefox string to
floating point conversion routines. A web page containing malicious
JavaScript could crash Firefox or, potentially, execute arbitrary code with
the privileges of the user running Firefox. (CVE-2009-1563)

A flaw was found in the way Firefox handles text selection. A malicious
website may be able to read highlighted text in a different domain (e.g.
another website the user is viewing), bypassing the same-origin policy.
(CVE-2009-3375)

A flaw was found in the way Firefox displays a right-to-left override
character when downloading a file. In these cases, the name displayed in
the title bar differs from the name displayed in the dialog body. An
attacker could use this flaw to trick a user into downloading a file that
has a file name or extension that differs from what the user expected.
(CVE-2009-3376)

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-2009-3374, CVE-2009-3380, CVE-2009-3382)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.0.15. You can find a link to the Mozilla
advisories in the References section of this errata.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.0.15, which corrects these issues. After installing the
update, Firefox must be restarted for the changes to take effect.

References:
http://www.redhat.com/security/updates/classification/#critical
http://www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.15
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-------------
Taking Action
-------------
You may address the issues outlined in this advisory in two ways:

     - select your server name by clicking on its name from the list
       available at the following location, and then schedule an
       errata update for it:
           https://rhn.redhat.com/rhn/systems/SystemList.do

     - run the Update Agent on each affected server.


---------------------------------
Changing Notification Preferences
---------------------------------
To enable/disable your Errata Alert preferences globally please log in to RHN
and navigate from "Your RHN" / "Your Account" to the "Preferences" tab.

        URL: https://rhn.redhat.com/rhn/account/UserPreferences.do

You can also enable/disable notification on a per system basis by selecting an
individual system from the "Systems List". From the individual system view
click the "Details" tab.


---------------------
Affected Systems List
---------------------
This Errata Advisory may apply to the systems listed below. If you know that
this errata does not apply to a system listed, it might be possible that the
package profile for that server is out of date. In that case you should refresh 
the system's package profile by running *one* of the following commands as root 
on that system:

 * 'up2date -p' (on Enterprise Linux systems prior to RHEL5)
 * 'rhn-profile-sync' (on Enterprise Linux 5 or later) 

There are 26 affected systems registered in 'Your RHN' (only systems for
which you have explicitly enabled Errata Alerts are shown).

Release   Arch       Profile Name
--------  --------   ------------
4AS       i686       node1.mpifc                             
4AS       i686       node2.mpifc                             
4AS       i686       node3.mpifc                             
4AS       i686       node4.mpifc                             
4AS       athlon     unknown                                 


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