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AUSCERT Security Bulletin
Dangling pointer crash regression from plugin parameter array fix
26 July 2010
AusCERT Security Bulletin Summary
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
CVE Names: CVE-2010-2755
Member content until: Wednesday, August 25 2010
Mozilla has released version 3.6.8 of the Firefox web browser,
correcting a denial of service vulnerability.
The vendor has supplied the following information regarding this
"Mozilla developer Daniel Holbert reported that the fix to the
plugin parameter array crash that was fixed in Firefox 3.6.7 caused
a crash showing signs of memory corruption. In certain
circumstances, properties in the plugin instance's parameter array
could be freed prematurely leaving a dangling pointer that the
plugin could execute, potentially calling into attacker-controlled
It is recommended that users of Firefox upgrade to version 3.6.8.
 Mozilla Foundation Security Advisory 2010-48
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in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
Australian Computer Emergency Response Team
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Facsimile: (07) 3365 7031
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