Date: 23 December 2011
Click here for printable version
Click here for PGP verifiable version
-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT Security Bulletin
Mozilla Firefox: Multiple vulnerabilities
23 December 2011
AusCERT Security Bulletin Summary
Product: Mozilla Firefox
Operating System: 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-2011-3663 CVE-2011-3661 CVE-2011-3658
CVE-2011-3664 CVE-2011-3666 CVE-2011-3665
Member content until: Friday, January 20 2012
Revision History: December 23 2011: CVE numbers assigned to bugs and included Thunderbird
December 21 2011: Initial Release
Multiple vulnerabilities have been found in Firefox web browser.
These range from 'application crash' to 'execution of arbitrary code'.
These issues are fixed in the most recent version 9.0. 
It has been found that there are several security issues in versions of
Firefox prior to 9.0. These allow memory corruption, execution of remote
disabled.      
Vulnerabilities mfsa2011-53  and mfsa2011-55  can cause
out-of-bounds memory access, possibly leading to execution of remote
Vulnerabilities mfsa2011-54  and mfsa2011-58  can lead to an
'accesskey' events, possibly leading to key stroke logging. It is
disabled. This is similar to .
Vulnerability mfsa2011-57  is triggered by a plug-in 'deleting its
containing DOM frame during a call from that frame'. This causes an
application crash but could be used to execute arbitrary code.
These issues are corrected in the 9.0 release of Mozilla Firefox.
Users of previous versions are recommended to upgrade to the 9.0
 Firefox 9.0 download.
AusCERT has made every effort to ensure that the information contained
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
The University of Queensland
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----