RHSA-2005:383 - Security Advisory

Topic

Updated firefox packages that fix various security bugs are now available.

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

Description

Mozilla Firefox is an open source Web browser.

Vladimir V. Perepelitsa discovered a bug in the way Firefox handles
anonymous functions during regular expression string replacement. It is
possible for a malicious web page to capture a random block of browser
memory. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2005-0989 to this issue.

Omar Khan discovered a bug in the way Firefox processes the PLUGINSPAGE
tag. It is possible for a malicious web page to trick a user into pressing
the "manual install" button for an unknown plugin leading to arbitrary
javascript code execution. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-0752 to this issue.

Doron Rosenberg discovered a bug in the way Firefox displays pop-up
windows. If a user choses to open a pop-up window whose URL is malicious
javascript, the script will be executed with elevated privileges. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-1153 to this issue.

A bug was found in the way Firefox handles the javascript global scope for
a window. It is possible for a malicious web page to define a global
variable known to be used by a different site, allowing malicious code to
be executed in the context of the site. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2005-1154 to
this issue.

Michael Krax discovered a bug in the way Firefox handles favicon links. A
malicious web page can programatically define a favicon link tag as
javascript, executing arbitrary javascript with elevated privileges. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2005-1155 to this issue.

Michael Krax discovered a bug in the way Firefox installed search plugins.
If a user chooses to install a search plugin from a malicious site, the new
plugin could silently overwrite an existing plugin. This could allow the
malicious plugin to execute arbitrary code and steal sensitive information.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the names CAN-2005-1156 and CAN-2005-1157 to these issues.

Kohei Yoshino discovered a bug in the way Firefox opens links in its
sidebar. A malicious web page could construct a link in such a way that,
when clicked on, could execute arbitrary javascript with elevated
privileges. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-1158 to this issue.

A bug was found in the way Firefox validated several XPInstall related
javascript objects. A malicious web page could pass other objects to the
XPInstall objects, resulting in the javascript interpreter jumping to
arbitrary locations in memory. The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2005-1159 to this issue.

A bug was found in the way the Firefox privileged UI code handled DOM nodes
from the content window. A malicious web page could install malicious
javascript code or steal data requiring a user to do commonplace actions
such as clicking a link or opening the context menu. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name
CAN-2005-1160 to this issue.

Users of Firefox are advised to upgrade to this updated package which
contains Firefox version 1.0.3 and is not vulnerable to these issues.

Solution

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/

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 155114 - CAN-2005-0752 Multiple firefox issues. (CAN-2005-0989)

CVEs

• CVE-2005-0989
• CVE-2005-1159
• CVE-2005-1160
• CVE-2005-1153
• CVE-2005-1154
• CVE-2005-1155
• CVE-2005-1156
• CVE-2005-1157
• CVE-2005-0752
• CVE-2005-1158

References

• http://www.mozilla.org/projects/security/known-vulnerabilities.html