[ MDVSA-2010:070 ] firefox

[dude67]

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Package : firefox
Date : April 13, 2010
Affected: 2008.0, 2009.1, 2010.0, Enterprise Server 5.0
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Problem Description:

Security issues were identified and fixed in firefox:

Security researcher regenrecht reported (via TippingPoint's Zero Day
Initiative) a potential reuse of a deleted image frame in Firefox 3.6's
handling of multipart/x-mixed-replace images. Although no exploit was
shown, re-use of freed memory has led to exploitable vulnerabilities
in the past (CVE-2010-0164).

Mozilla developers 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 (CVE-2010-0165,
CVE-2010-0167).

Mozilla developer Josh Soref of Nokia reported that documents
failed to call certain security checks when attempting to preload
images. Although the image content is not available to the page, it
is possible to specify protocols that are normally not allowed in a
web page such as file:. This includes internal schemes implemented
by add-ons that might perform privileged actions resulting in
something like a Cross-Site Request Forgery (CSRF) attack against
the add-on. Potential severity would depend on the add-ons installed
(CVE-2010-0168).

Mozilla developer Blake Kaplan reported that the window.location object
was made a normal overridable JavaScript object in the Firefox 3.6
browser engine (Gecko 1.9.2) because new mechanisms were developed
to enforce the same-origin policy between windows and frames. This
object is unfortunately also used by some plugins to determine the page
origin used for access restrictions. A malicious page could override
this object to fool a plugin into granting access to data on another
site or the local file system. The behavior of older Firefox versions
has been restored (CVE-2010-0170).

Mozilla developer Justin Dolske reported that the new asynchronous
Authorization Prompt (HTTP username and password) was not always
attached to the correct window. Although we have not demonstrated
this, it may be possible for a malicious page to convince a user
to open a new tab or popup to a trusted service and then have the
HTTP authorization prompt from the malicious page appear to be the
login prompt for the trusted page. This potential attack is greatly
mitigated by the fact that very few web sites use HTTP authorization,
preferring instead to use web forms and cookies (CVE-2010-0172).

Unspecified vulnerability in Mozilla Firefox 3.5.x through 3.5.8 allows
remote attackers to cause a denial of service (memory corruption and
application crash) and possibly have unknown other impact via vectors
that might involve compressed data, a different vulnerability than
CVE-2010-1028 (CVE-2010-1122).

Mozilla developers 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 (CVE-2010-0173,
CVE-2010-0174)

Security researcher regenrecht reported via TippingPoint's Zero Day
Initiative that a select event handler for XUL tree items could be
called after the tree item was deleted. This results in the execution
of previously freed memory which an attacker could use to crash a
victim's browser and run arbitrary code on the victim's computer
(CVE-2010-0175).

Security researcher regenrecht reported via TippingPoint's Zero Day
Initiative an error in the way <option> elements are inserted into
a XUL tree <optgroup>. In certain cases, the number of references
to an <option> element is under-counted so that when the element is
deleted, a live pointer to its old location is kept around and may
later be used. An attacker could potentially use these conditions to
run arbitrary code on a victim's computer (CVE-2010-0176).

Security researcher regenrecht reported via TippingPoint's
Zero Day Initiative an error in the implementation of the
window.navigator.plugins object. When a page reloads, the plugins array
would reallocate all of its members without checking for existing
references to each member. This could result in the deletion of
objects for which valid pointers still exist. An attacker could use
this vulnerability to crash a victim's browser and run arbitrary code
on the victim's machine (CVE-2010-0177).

Security researcher Paul Stone reported that a browser applet could
be used to turn a simple mouse click into a drag-and-drop action,
potentially resulting in the unintended loading of resources in a
user's browser. This behavior could be used twice in succession to
first load a privileged chrome: URL in a victim's browser, then load
a malicious javascript: URL on top of the same document resulting in
arbitrary script execution with chrome privileges (CVE-2010-0178).

Mozilla security researcher moz_bug_r_a4 reported that the
XMLHttpRequestSpy module in the Firebug add-on was exposing
an underlying chrome privilege escalation vulnerability. When
the XMLHttpRequestSpy object was created, it would attach various
properties of itself to objects defined in web content, which were not
being properly wrapped to prevent their exposure to chrome privileged
objects. This could result in an attacker running arbitrary JavaScript
on a victim's machine, though it required the victim to have Firebug
installed, so the overall severity of the issue was determined to be
High (CVE-2010-0179).

phpBB developer Henry Sudhof reported that when an image tag points to
a resource that redirects to a mailto: URL, the external mail handler
application is launched. This issue poses no security threat to users
but could create an annoyance when browsing a site that allows users
to post arbitrary images (CVE-2010-0181).

Mozilla community member Wladimir Palant reported that XML documents
were failing to call certain security checks when loading new
content. This could result in certain resources being loaded that
would otherwise violate security policies set by the browser or
installed add-ons (CVE-2010-0182).

Note that to benefit from the fix for CVE-2009-3555 added
in nss-3.12.6, Firefox 3.6 users will need to set their
security.ssl.require_safe_negotiation preference to true. In Mandriva
the default setting is false due to problems with some common sites.

Since firefox-3.0.19 is the last 3.0.x release Mandriva
opted to provide the latest 3.6.3 version for Mandriva Linux
2008.0/2009.1/MES5/2010.0.

Packages for 2008.0 are provided for Corporate Desktop 2008.0
customers.

Additionally, some packages which require so, have been rebuilt and
are being provided as updates.
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References:

http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0164
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0165
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0167
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0168
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0170
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0172
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-1122
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0173
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0174
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0175
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0176
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0177
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0178
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0179
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0181
http://cve.mitre.org/cgi-bin/cvename.cg ... -2010-0182
http://www.mozilla.org/security/known-v ... refox3.6.3
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