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Mozilla Firefox was updated to version 7.
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MFSA 2011-36: 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
In general these flaws cannot be exploited through email in the
Thunderbird and SeaMonkey products because scripting is disabled,, but
are potentially a risk in browser or browser-like contexts in those
Benjamin Smedberg, Bob Clary, and Jesse Ruderman reported memory
safety problems that affected Firefox 3.6 and Firefox 6.
Bob Clary, Andrew McCreight, Andreas Gal, Gary Kwong, Igor Bukanov,
Jason Orendorff, Jesse Ruderman, and Marcia Knous reported memory
safety problems that affected Firefox 6, fixed in Firefox 7.
MFSA 2011-38: Mozilla developer Boris Zbarsky reported that a frame
named 'location' could shadow the window.location object unless a
script in a page grabbed a reference to the true object before the
frame was created. Because some plugins use the value of
window.location to determine the page origin this could fool the
plugin into granting the plugin content access to another site or the
local file system in violation of the Same Origin Policy. This flaw
allows circumvention of the fix added for MFSA 2010-10.
MFSA 2011-39: Ian Graham of Citrix Online reported that when multiple
Location headers were present in a redirect response Mozilla behavior
differed from other browsers: Mozilla would use the second Location
header while Chrome and Internet Explorer would use the first. Two
copies of this header with different values could be a symptom of a
CRLF injection attack against a vulnerable server. Most commonly it is
the Location header itself that is vulnerable to the response
splitting and therefore the copy preferred by Mozilla is more likely
to be the malicious one. It is possible, however, that the first copy
was the injected one depending on the nature of the server
The Mozilla browser engine has been changed to treat two copies of
this header with different values as an error condition. The same has
been done with the headers Content-Length and Content-Disposition.
MFSA 2011-40: Mariusz Mlynski reported that if you could convince a
user to hold down the Enter key--as part of a game or test, perhaps--a
malicious page could pop up a download dialog where the held key would
then activate the default Open action. For some file types this would
be merely annoying (the equivalent of a pop-up) but other file types
have powerful scripting capabilities. And this would provide an avenue
for an attacker to exploit a vulnerability in applications not
normally exposed to potentially hostile internet content.
Mariusz also reported a similar flaw with manual plugin installation
using the PLUGINSPAGE attribute. It was possible to create an internal
error that suppressed a confirmation dialog, such that holding enter
would lead to the installation of an arbitrary add-on. (This variant
did not affect Firefox 3.6)
Holding enter allows arbitrary code execution due to Download Manager
Holding enter allows arbitrary extension installation (CVE-2011-3001)
MFSA 2011-41: Michael Jordon of Context IS reported that in the ANGLE
library used by WebGL the return value from GrowAtomTable() was not
checked for errors. If an attacker could cause requests that exceeded
the available memeory those would fail and potentially lead to a
buffer overrun as subsequent code wrote into the non-allocated space.
Ben Hawkes of the Google Security Team reported a WebGL test case that
demonstrated an out of bounds write after an allocation failed.
MFSA 2011-42: Security researcher Aki Helin reported a potentially
exploitable crash in the YARR regular expression library used by
MFSA 2011-43: David Rees reported that the JSSubScriptLoader (a
feature used by some add-ons) was 'unwrapping' XPCNativeWrappers when
they were used as the scope parameter to loadSubScript(). Without the
protection of the wrappers the add-on could be vulnerable to privilege
escalation attacks from malicious web content. Whether any given
add-on were vulnerable would depend on how the add-on used the feature
and whether it interacted directly with web content, but we did find
at least one vulnerable add-on and presumer there are more.
MFSA 2011-44: sczimmer reported that Firefox crashed when loading a
particular .ogg file. This was due to a use-after-free condition and
could potentially be exploited to install malware. (CVE-2011-3005)
MFSA 2011-45: University of California, Davis researchers Liang Cai
and Hao Chen presented a paper at the 2011 USENIX HotSec workshop on
inferring keystrokes from device motion data on mobile devices. Web
pages can now receive data similar to the apps studied in that paper
and likely present a similar risk. We have decided to limit motion
data events to the currently-active tab to prevent the possibility of
background tabs attempting to decipher keystrokes the user is entering
into the foreground tab.
See also :
Update the affected MozillaFirefox packages.
Risk factor :
Critical / CVSS Base Score : 10.0
Family: SuSE Local Security Checks
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