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T-003: Vulnerabilities in Microsoft Excel

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Special Forums Cybersecurity Security Advisories (RSS) T-003: Vulnerabilities in Microsoft Excel
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Old 11-13-2008
T-003: Vulnerabilities in Microsoft Excel
Several remote code execution vulnerabilities exist in the way Microsoft Excel: 1) processes a VBA Performance Cache; 2) an improper memory allocationwhenloading Excel objects; and 3) a formula parsing vulnerability when parsing Microsoft Excel documents containing a specially crafted formula embedded inside a cell. The risk is MEDIUM. An attacker who successfully exploited this vulnerability could take complete control of an affected system.


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excel::template::element::formula

Excel::Template::Element::Formula(3pm)			User Contributed Perl Documentation		    Excel::Template::Element::Formula(3pm)

NAME

       Excel::Template::Element::Formula - Excel::Template::Element::Formula

PURPOSE

       To write formulas to the worksheet

NODE NAME

       FORMULA

INHERITANCE

       Excel::Template::Element::Cell

ATTRIBUTES

       All attributes a CELL can have, a FORMULA can have, including the ability to be referenced using the 'ref' attribute.

CHILDREN

       None

EFFECTS

       This will consume one column on the current row.

DEPENDENCIES

       None

USAGE

	 <formula text="=(1 + 2)"/>
	 <formula>=SUM(A1:A5)</formula>

	 <formula text="$Param2"/>
	 <formula>=(A1 + <var name="Param">)</formula>

       In the above example, four formulas are written out. The first two have the formula hard-coded. The second two have variables. The third
       and fourth items have another thing that should be noted. If you have a formula where you want a variable in the middle, you have to use
       the latter form. Variables within parameters are the entire parameter's value.

AUTHOR

       Rob Kinyon (rob.kinyon@gmail.com)

SEE ALSO

       CELL

perl v5.14.2							    2010-06-17				    Excel::Template::Element::Formula(3pm)