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                         AUSCERT Security Bulletin

                              ASB-2009.1115.2
     Opera 10.01 has been released correcting multiple vulnerabilities
                              2 November 2009

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              Opera
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
                      Provide Misleading Information  -- Remote with User Interaction
                      Read-only Data Access           -- Remote with User Interaction
Resolution:           Patch/Upgrade
CVE Names:            CVE-2009-3832 CVE-2009-3831 
Member content until: Saturday, November 28 2009

Revision History:     November  2 2009: Added CVE References
                      October  29 2009: Initial Release

OVERVIEW

        Opera 10.01 has been released correcting multiple vulnerabilities.


IMPACT

        The vendor has provided the following information regarding the
        vulnerabilities that have been corrected in version 10.01:
        
        "Specially crafted domain names can cause a memory corruption in
        Opera, which may lead to a crash. Successful exploitation can lead
        to execution of arbitrary code." [1]
        
        "Opera may allow scripts to run on the feed subscription page,
        thereby gaining access to the feeds object. This can be used for
        automatic subscription of feeds, or reading other feeds." [2]
        
        "In some cases, a Web font intended to be used for page content could
        be incorrectly used by Opera to render parts of the user interface,
        including the address field. This can be used by a malicious site to
        display a false domain name in the address field." [3]


MITIGATION

        Opera version 10.01 is available for download from the vendor's
        website. [4]


REFERENCES

        [1] Advisory: Certain domain names can allow execution of arbitrary
            code
            http://www.opera.com/support/kb/view/938/

        [2] Advisory: Opera may allow scripts to access feeds
            http://www.opera.com/support/kb/view/939/

        [3] Advisory: Web fonts can be used to spoof the page address
            http://www.opera.com/support/kb/view/940/

        [4] Download Opera browser
            http://www.opera.com/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.

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
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.
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