Patch Available for Excel "CALL Vulnerability"

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            AUSCERT External Security Bulletin Redistribution

                ESB-98.188 -- MS98-018 Security Bulletin
             Patch Available for Excel "CALL Vulnerability"
                                  
                            11 December 1998

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Microsoft Corporation has released the following security bulletin
concerning a vulnerability in Excel which may allow executables to be
run by content embedded in a worksheet without a warning to the user:

       http://www.microsoft.com/security/bulletins/ms98-018.asp

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This security bulletin is provided as a service to AusCERT's members.
As AusCERT did not write the document quoted above, AusCERT has
had no control over its content.  The decision to use any or all
of this information is the responsibility of each user or organisation,
and should be done so in accordance with site policies and procedures.

If you have any questions or need further information, please contact 
Microsoft Corporation directly.

Previous advisories and external security bulletins can be retrieved from:

	http://www.auscert.org.au/Information/advisories.html

If you believe that your system has been compromised, contact AusCERT or
your representative in FIRST (Forum of Incident Response and Security
Teams).

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 emergencies.

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