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                         AUSCERT Security Bulletin

                               ASB-2009.1063
     Vulnerability corrected in multiple Norton and Symantec products
                              28 August 2009

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

Product:              Norton AntiVirus
                      Norton Internet Security
                      Symantec AntiVirus Corporate Edition
                      Symantec Client Security
Operating System:     Windows
                      Linux variants
Impact/Access:        Denial of Service -- Remote/Unauthenticated
Resolution:           Patch/Upgrade
Member content until: Sunday, September 27 2009

OVERVIEW

        Symantec have released updates to a number of their products to 
        correct a security vulnerability.


IMPACT

        The vendor has detailed that the following products are vulnerable
        to a Denial of Service (DoS): [1]
        
          * Norton AntiVirus versions 2005 through to 2008
          * Norton Internet Security versions 2005 through to 2008
          * Symantec AntiVirus Corporate Edition verisions 9.0 MR6 and 
            earlier, 10.0 all versions, 10.1 MR7 and earlier, 10.2 MR2 and 
            earlier.
          * Symantec Client Security versions 2.0 MR6 and earlier, 3.0 all 
            versions, 3.1 MR7 and earlier


MITIGATION

        Users of Norton AntiVirus and Norton Internet Security can correct
        this vulnerability by running LiveUpdate in interactive mode. 
        Patches for the other affected products can update to the relevant
        version as described in the vendor's publication. [1]


REFERENCES

        [1] Norton AntiVirus and Symantec Client Security Email Denial of
            Service Vulnerability
            http://www.symantec.com/business/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2009&suid=20090826_01

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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