Synopsis

Critical: firefox security and bug fix update

Type/Severity

Security Advisory: Critical

Topic

Updated firefox packages that fix multiple security issues and three bugs
are now available for Red Hat Enterprise Linux 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.

Description

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-2012-0461, CVE-2012-0462, CVE-2012-0464)

Two flaws were found in the way Firefox parsed certain Scalable Vector
Graphics (SVG) image files. A web page containing a malicious SVG image
file could cause an information leak, or cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2012-0456, CVE-2012-0457)

A flaw could allow a malicious site to bypass intended restrictions,
possibly leading to a cross-site scripting (XSS) attack if a user were
tricked into dropping a "javascript:" link onto a frame. (CVE-2012-0455)

It was found that the home page could be set to a "javascript:" link. If a
user were tricked into setting such a home page by dragging a link to the
home button, it could cause Firefox to repeatedly crash, eventually
leading to arbitrary code execution with the privileges of the user
running Firefox. (CVE-2012-0458)

A flaw was found in the way Firefox parsed certain web content containing
"cssText". 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-2012-0459)

It was found that by using the DOM fullscreen API, untrusted content could
bypass the mozRequestFullscreen security protections. A web page containing
malicious web content could exploit this API flaw to cause user interface
spoofing. (CVE-2012-0460)

A flaw was found in the way Firefox handled pages with multiple Content
Security Policy (CSP) headers. This could lead to a cross-site scripting
attack if used in conjunction with a website that has a header injection
flaw. (CVE-2012-0451)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 10.0.3 ESR. You can find a link to the Mozilla
advisories in the References section of this erratum.

This update also fixes the following bugs:

• When using the Traditional Chinese locale (zh-TW), a segmentation fault

sometimes occurred when closing Firefox. (BZ#729632)

• Inputting any text in the Web Console (Tools -> Web Developer ->

Web Console) caused Firefox to crash. (BZ#784048)

• The java-1.6.0-ibm-plugin and java-1.6.0-sun-plugin packages require the

"/usr/lib/mozilla/plugins/" directory on 32-bit systems, and the
"/usr/lib64/mozilla/plugins/" directory on 64-bit systems. These
directories are created by the xulrunner package; however, they were
missing from the xulrunner package provided by the RHEA-2012:0327 update.
Therefore, upgrading to RHEA-2012:0327 removed those directories, causing
dependency errors when attempting to install the java-1.6.0-ibm-plugin or
java-1.6.0-sun-plugin package. With this update, xulrunner once again
creates the plugins directory. This issue did not affect users of Red Hat
Enterprise Linux 6. (BZ#799042)

All Firefox users should upgrade to these updated packages, which contain
Firefox version 10.0.3 ESR, which corrects these issues. After installing
the update, Firefox must be restarted for the changes to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.2 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.2 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.2 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.2 i386
• Red Hat Storage 2.0 x86_64
• Red Hat Gluster Storage Server for On-premise 2.0 x86_64
• Red Hat Storage for Public Cloud (via RHUI) 2.0 x86_64
• Red Hat Enterprise Linux Server - AUS 6.2 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 729632 - Segfault on quit with Chinese locale [ @ gdk_display_close() ]
• BZ - 784048 - Typing into Web Console in Firefox causes crashing - gcc 4.4.3
• BZ - 799042 - not able to install java-plugin
• BZ - 803109 - CVE-2012-0461 CVE-2012-0462 CVE-2012-0464 Mozilla: Miscellaneous memory safety hazards (rv:11.0/ rv:10.0.3 / rv:1.9.2.28) (MFSA 2012-19)
• BZ - 803111 - CVE-2012-0460 Mozilla: window.fullScreen writeable by untrusted content (MFSA 2012-18)
• BZ - 803112 - CVE-2012-0459 Mozilla: Crash when accessing keyframe cssText after dynamic modification (MFSA 2012-17)
• BZ - 803113 - CVE-2012-0458 Mozilla: Escalation of privilege with Javascript: URL as home page (MFSA 2012-16)
• BZ - 803114 - CVE-2012-0451 Mozilla: XSS with multiple Content Security Policy headers (MFSA 2012-15)
• BZ - 803116 - CVE-2012-0456 CVE-2012-0457 Mozilla: SVG issues found with Address Sanitizer (MFSA 2012-14)
• BZ - 803119 - CVE-2012-0455 Mozilla: XSS with Drag and Drop and Javascript: URL (MFSA 2012-13)

CVEs

• CVE-2012-0451
• CVE-2012-0455
• CVE-2012-0457
• CVE-2012-0456
• CVE-2012-0459
• CVE-2012-0458
• CVE-2012-0460
• CVE-2012-0461
• CVE-2012-0462
• CVE-2012-0464

References