SuSE: 2009-042: Mozilla Firefox 3.0 Security Update
Summary
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SUSE Security Announcement
Package: MozillaFirefox
Announcement ID: SUSE-SA:2009:042
Date: Thu, 06 Aug 2009 10:00:00 +0000
Affected Products: SLE SDK 10 SP2
SUSE Linux Enterprise Desktop 10 SP2
SUSE Linux Enterprise 10 SP2 DEBUGINFO
SUSE Linux Enterprise Server 10 SP2
Vulnerability Type: remote code execution
Severity (1-10): 8
SUSE Default Package: yes
Cross-References: CVE-2009-1194, CVE-2009-2462, CVE-2009-2463
CVE-2009-2464, CVE-2009-2465, CVE-2009-2466
CVE-2009-2467, CVE-2009-2469, CVE-2009-2471
CVE-2009-2472, MFSA 2009-34, MFSA 2009-35
MFSA 2009-36, MFSA 2009-37, MFSA 2009-39
MFSA 2009-40
Content of This Advisory:
1) Security Vulnerability Resolved:
Mozilla Firefox 3.0 security version upgrade
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
The Mozilla Firefox Browser in SUSE Linux Enterprise 10 Service Pack 2
was brought from the old 2.0.0.x release branch to the current 3.0.12
release of the Firefox 3.0 release branch.
It contains the following new security fixes:
MFSA 2009-34 / CVE-2009-2462 / CVE-2009-2463 / CVE-2009-2464 /
CVE-2009-2465 / CVE-2009-2466:
Mozilla developers and community members identified and fixed
several stability bugs in the browser engine used in Firefox and
other Mozilla-based products. Some of these crashes showed evidence
of memory corruption under certain circumstances and we presume that
with enough effort at least some of these could be exploited to run
arbitrary code.
MFSA 2009-35 / CVE-2009-2467:
Security researcher Attila Suszter reported that when a page contains
a Flash object which presents a slow script dialog, and the page is
navigated while the dialog is still visible to the user, the Flash
plugin is unloaded resulting in a crash due to a call to the deleted
object. This crash could potentially be used by an attacker to run
arbitrary code on a victim's computer.
MFSA 2009-36 / CVE-2009-1194:
oCERT security researcher Will Drewry reported a series of heap
and integer overflow vulnerabilities which independently affected
multiple font glyph rendering libraries. On Linux platforms libpango
was susceptible to the vulnerabilities while on OS X CoreGraphics was
similarly vulnerable. An attacker could trigger these overflows by
constructing a very large text run for the browser to display. Such an
overflow can result in a crash which the attacker could potentially
use to run arbitrary code on a victim's computer. The open-source
nature of Linux meant that Mozilla was able to work with the libpango
maintainers to implement the correct fix in version 1.24 of that
system library which was distributed with OS security updates. On
Mac OS X Firefox works around the CoreGraphics flaw by limiting the
length of text runs passed to the system.
MFSA 2009-37 / CVE-2009-2469:
Security researcher PenPal reported a crash involving a SVG element on
which a watch function and __defineSetter__ function have been set for
a particular property. The crash showed evidence of memory corruption
and could potentially be used by an attacker to run arbitrary code
MFSA 2009-39 / CVE-2009-2471:
Mozilla developer Blake Kaplan reported that setTimeout, when called
with certain object parameters which should be protected with a
XPCNativeWrapper, will fail to keep the object wrapped when compiling
the new function to be executed. If chrome privileged code were
to call setTimeout using this as an argument, the this object will
lose its wrapper and could be unsafely accessed by chrome code. An
attacker could use such vulnerable code to run arbitrary JavaScript
with chrome privileges.
MFSA 2009-40 / CVE-2009-2472:
Mozilla security researcher moz_bug_r_a4 reported a series
of vulnerabilities in which objects that normally receive a
XPCCrossOriginWrapper are constructed without the wrapper. This
can lead to cases where JavaScript from one website may unsafely
access properties of such an object which had been set by a different
website. A malicious website could use this vulnerability to launch
a XSS attack and run arbitrary JavaScript within the context of
another site.
The update also contains a set of GTK2+ and dependend libraries
necessary for this version upgrade.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
Please restart all running Firefox instances after the update.
This update is not yet available on S/390 64bit, this will be delivered
with the upcoming 3.0.13 update.
Due to a unclear SUN Java bug Firefox will not start on the first try,
but only on the second.
This update also requires a fixed yast2-registration, otherwise further
registration tasks will not open a webbrowser. It is available with
this update.
4) Package Location and Checksums
The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command
rpm -Fhv
References
