Some vulnerabilities have been reported in Microsoft Word, which can be exploited by malicious people to compromise a user's system.
1) An unspecified error in the handling of certain strings in Word documents can be exploited to cause a memory corruption via a specially crafted string.
NOTE: According to Microsoft, this vulnerability is already being actively exploited on a limited scale.
2) An error within the processing of counts in Word documents can be exploited to somewhat control the destination address of a memmove() call by manipulating a certain DWORD in the document used for calculating the destination address.
3) An error within the handling of macros in Word documents can be exploited to automatically execute a macro by manipulating certain properties in a Word document.
4) An error within the processing of drawing objects can be exploited to cause a memory corruption via a Word document containing a specially crafted drawing object.
Successful exploitation of the vulnerabilities allows execution of arbitrary code.
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Subject: Microsoft Word Multiple Memory Corruption Vulnerabilities
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