Mozilla Firefox fixes multiple flaws which could let remote users execute arbitrary code, access information and access restricted resources.

"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." [1]

http://www.mozilla.org/security/announce/2011/mfsa2011-12.html

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Guy Bruneau IPSS Inc. gbruneau at isc dot sans dot edu