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AA-2009.0120                  AUSCERT Advisory

                                   [OSX]
            Java Runtime Environment: Multiple Vulnerabilities
                                21 May 2009
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        AusCERT Advisory Summary
        ------------------------

Product:              Java Runtime Environment (JRE)
Operating System:     Mac OS
Impact:               Execute Arbitrary Code/Commands
                      Denial of Service
Access:               Remote/Unauthenticated
Member content until: Thursday, June 18 2009

Ref:                  ESB-2008.1090


OVERVIEW:
        
        There has been a report [1] that the current version Mac OS X includes 
        a version of the Java Runtime Environment (JRE), which includes known 
        vulnerabilities [2].


IMPACT: 

        There has been a report [1] that the current version of Mac OS X 
        (including current Security Updates), includes a vulnerable version of 
        the Java Runtime Environment. A PoC has been released for one of these 
        vulnerabilities (Remote Deserialization).


MITIGATION:

        Disable Java applets for untrusted websites.


REFERENCES:

        [1] Mac OS X Includes Known Vulnerable Version of Java
            http://www.us-cert.gov/current/#java_vulnerability_affects_mac_os

        [2] ESB-2008.1090 -- [Win][UNIX/Linux] -- Sun Releases Updates for Java 
            Runtime Environment (JRE) and Java SE Development Kit (JDK)
            http://www.auscert.org.au/10140


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

===========================================================================
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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