sdkp3-MozillaFirefoxSecurity update for Mozilla Firefox
Mozilla Firefox 3.5 was updated to update 3.5.16 fixing several security
issues.
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MFSA 2010-74: Mozilla developers identified and fixed several memory
safety bugs in the browser engine used in Firefox and other
Mozilla-based products. Some of these bugs 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.
Jesee Ruderman, Andreas Gal, Nils, and Brian Hackett reported memory
safety problems that affected Firefox 3.6 and Firefox 3.5.
(CVE-2010-3776)
Igor Bukanov reported a memory safety problem that was fixed in
Firefox 3.6 only. (CVE-2010-3777)
Jesse Ruderman reported a crash which affected Firefox 3.5 only.
(CVE-2010-3778)
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MFSA 2010-75 / CVE-2010-3769: Dirk Heinrich reported that on Windows
platforms when document.write() was called with a very long string a
buffer overflow was caused in line breaking routines attempting to
process the string for display. Such cases triggered an invalid read
past the end of an array causing a crash which an attacker could
potentially use to run arbitrary code on a victim's computer.
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MFSA 2010-76 / CVE-2010-3771: Security researcher echo reported that
a web page could open a window with an about:blank location and then
inject an
element into that page which upon submission would redirect to a
chrome: document. The effect of this defect was that the original
page would wind up with a reference to a chrome-privileged object,
the opened window, which could be leveraged for privilege escalation
attacks.
Mozilla security researcher moz_bug_r_a4 provided proof-of-concept
code demonstrating how the above vulnerability could be used to run
arbitrary code with chrome privileges.
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MFSA 2010-77 / CVE-2010-3772: Security researcher wushi of team509
reported that when a XUL tree had an HTML
element nested inside a element then code attempting to display
content in the XUL tree would incorrectly treat the
element as a parent node to tree content underneath it resulting in
incorrect indexes being calculated for the child content. These
incorrect indexes were used in subsequent array operations which
resulted in writing data past the end of an allocated buffer. An
attacker could use this issue to crash a victim's browser and run
arbitrary code on their machine.
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MFSA 2010-78 / CVE-2010-3768: Mozilla added the OTS font sanitizing
library to prevent downloadable fonts from exposing vulnerabilities
in the underlying OS font code. This library mitigates against
several issues independently reported by Red Hat Security Response
Team member Marc Schoenefeld and Mozilla security researcher
Christoph Diehl.
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MFSA 2010-79 / CVE-2010-3775: Security researcher Gregory Fleischer
reported that when a Java LiveConnect script was loaded via a data:
URL which redirects via a meta refresh, then the resulting plugin
object was created with the wrong security principal and thus
received elevated privileges such as the abilities to read local
files, launch processes, and create network connections.
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MFSA 2010-80 / CVE-2010-3766: Security researcher regenrecht reported
via TippingPoint's Zero Day Initiative that a nsDOMAttribute node can
be modified without informing the iterator object responsible for
various DOM traversals. This flaw could lead to a inconsistent state
where the iterator points to an object it believes is part of the DOM
but actually points to some other object. If such an object had been
deleted and its memory reclaimed by the system, then the iterator
could be used to call into attacker-controlled memory.
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MFSA 2010-81 / CVE-2010-3767: Security researcher regenrecht reported
via TippingPoint's Zero Day Initiative that JavaScript arrays were
vulnerable to an integer overflow vulnerability. The report
demonstrated that an array could be constructed containing a very
large number of items such that when memory was allocated to store
the array items, the integer value used to calculate the buffer size
would overflow resulting in too small a buffer being allocated.
Subsequent use of the array object could then result in data being
written past the end of the buffer and causing memory corruption.
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MFSA 2010-82 / CVE-2010-3773: Mozilla security researcher
moz_bug_r_a4 reported that the fix for CVE-2010-0179 could be
circumvented permitting the execution of arbitrary JavaScript with
chrome privileges.
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MFSA 2010-83 / CVE-2010-3774: Google security researcher Michal
Zalewski reported that when a window was opened to a site resulting
in a network or certificate error page, the opening site could access
the document inside the opened window and inject arbitrary content.
An attacker could use this bug to spoof the location bar and trick a
user into thinking they were on a different site than they actually
were.
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MFSA 2010-84 / CVE-2010-3770: Security researchers Yosuke Hasegawa
and Masatoshi Kimura reported that the x-mac-arabic, x-mac-farsi and
x-mac-hebrew character encodings are vulnerable to XSS attacks due to
some characters being converted to angle brackets when displayed by
the rendering engine. Sites using these character encodings would
thus be potentially vulnerable to script injection attacks if their
script filtering code fails to strip out these specific characters.
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