RHSA-2014:0132 - Security Advisory

Topic

Updated firefox packages that fix several security issues 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. 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-2014-1477, CVE-2014-1482, CVE-2014-1486)

A flaw was found in the way Firefox handled error messages related to web
workers. An attacker could use this flaw to bypass the same-origin policy,
which could lead to cross-site scripting (XSS) attacks, or could
potentially be used to gather authentication tokens and other data from
third-party websites. (CVE-2014-1487)

A flaw was found in the implementation of System Only Wrappers (SOW).
An attacker could use this flaw to crash Firefox. When combined with other
vulnerabilities, this flaw could have additional security implications.
(CVE-2014-1479)

It was found that the Firefox JavaScript engine incorrectly handled window
objects. A remote attacker could use this flaw to bypass certain security
checks and possibly execute arbitrary code. (CVE-2014-1481)

Red Hat would like to thank the Mozilla project for reporting these issues.
Upstream acknowledges Christian Holler, Terrence Cole, Jesse Ruderman, Gary
Kwong, Eric Rescorla, Jonathan Kew, Dan Gohman, Ryan VanderMeulen, Sotaro
Ikeda, Cody Crews, Fredrik "Flonka" Lonnqvist, Arthur Gerkis, Masato
Kinugawa, and Boris Zbarsky as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 24.3.0 ESR. You can find a link to the Mozilla
advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 24.3.0 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/site/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 6.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.5 i386
• Red Hat Enterprise Linux Server - AUS 6.5 x86_64
• 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 6.5 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 6.5 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 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.5 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux EUS Compute Node 6.5 x86_64
• Red Hat Enterprise Linux Server - TUS 6.5 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1060938 - CVE-2014-1477 Mozilla: Miscellaneous memory safety hazards (rv:24.3) (MFSA 2014-01)
• BZ - 1060940 - CVE-2014-1479 Mozilla: Clone protected content with XBL scopes (MFSA 2014-02)
• BZ - 1060942 - CVE-2014-1482 Mozilla: Incorrect use of discarded images by RasterImage (MFSA 2014-04)
• BZ - 1060945 - CVE-2014-1486 Mozilla: Use-after-free with imgRequestProxy and image proccessing (MFSA 2014-08)
• BZ - 1060947 - CVE-2014-1487 Mozilla: Cross-origin information leak through web workers (MFSA 2014-09)
• BZ - 1060952 - CVE-2014-1481 Mozilla: Inconsistent JavaScript handling of access to Window objects (MFSA 2014-13)

CVEs

• CVE-2014-1479
• CVE-2014-1482
• CVE-2014-1481
• CVE-2014-1487
• CVE-2014-1477
• CVE-2014-1486

References

• https://access.redhat.com/security/updates/classification/#critical
• http://www.mozilla.org/security/known-vulnerabilities/firefoxESR.html