mozilla security update

Updated mozilla packages that fix various bugs are now available.

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

Mozilla is an open source Web browser, advanced email and newsgroup client,
IRC chat client, and HTML editor.

A buffer overflow bug was found in the way Mozilla processes GIF images. It
is possible for an attacker to create a specially crafted GIF image, which
when viewed by a victim will execute arbitrary code as the victim. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-0399 to this issue.

A bug was found in the way Mozilla responds to proxy auth requests. It is
possible for a malicious webserver to steal credentials from a victims
browser by issuing a 407 proxy authentication request. (CAN-2005-0147)

A bug was found in the way Mozilla displays dialog windows. It is possible
that a malicious web page which is being displayed in a background tab
could present the user with a dialog window appearing to come from the
active page. (CAN-2004-1380)

A bug was found in the way Mozilla Mail handles cookies when loading
content over HTTP regardless of the user's preference. It is possible that
a particular user could be tracked through the use of malicious mail
messages which load content over HTTP. (CAN-2005-0149)

A flaw was found in the way Mozilla displays international domain names. It
is possible for an attacker to display a valid URL, tricking the user into
thinking they are viewing a legitimate webpage when they are not.
(CAN-2005-0233)

A bug was found in the way Mozilla handles pop-up windows. It is possible
for a malicious website to control the content in an unrelated site's
pop-up window. (CAN-2004-1156)

A bug was found in the way Mozilla saves temporary files. Temporary files
are saved with world readable permissions, which could allow a local
malicious user to view potentially sensitive data. (CAN-2005-0142)

A bug was found in the way Mozilla handles synthetic middle click events.
It is possible for a malicious web page to steal the contents of a victims
clipboard. (CAN-2005-0146)

A bug was found in the way Mozilla processes XUL content. If a malicious
web page can trick a user into dragging an object, it is possible to load
malicious XUL content. (CAN-2005-0401)

A bug was found in the way Mozilla loads links in a new tab which are
middle clicked. A malicious web page could read local files or modify
privileged chrom settings. (CAN-2005-0141)

A bug was found in the way Mozilla displays the secure site icon. A
malicious web page can use a view-source URL targetted at a secure page,
while loading an insecure page, yet the secure site icon shows the previous
secure state. (CAN-2005-0144)

A bug was found in the way Mozilla displays the secure site icon. A
malicious web page can display the secure site icon by loading a binary
file from a secured site. (CAN-2005-0143)

A bug was found in the way Mozilla displays the download dialog window. A
malicious site can obfuscate the content displayed in the source field,
tricking a user into thinking they are downloading content from a trusted
source. (CAN-2005-0585)

Users of Mozilla are advised to upgrade to this updated package which
contains Mozilla version 1.7.6 to correct these issues.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

142508 - CAN-2004-1156 Frame injection vulnerability.
144228 - CAN-2005-0585 download dialog URL spoofing
146188 - CAN-2005-0141 multiple mozilla issues CAN-2004-1316 CAN-2005-0142 CAN-2005-0143 CAN-2005-0144 CAN-2004-1380 CAN-2004-1381 CAN-2005-0146 CAN-2005-0147 CAN-2005-0149
147397 - homograph spoofing
150866 - CAN-2005-0399 mozilla GIF buffer overflow
151730 - CAN-2005-0401 Drag and drop loading of privileged XUL

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1380
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0141
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0142
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0143
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0144
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0146
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0149
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0399
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0401