Description: Some vulnerabilities have been reported in Microsoft Office, which can be exploited by malicious people to compromise a user's system.
1) An error within the string parsing can be exploited to cause a buffer overflow when a malicious Office document containing a malformed string is opened.
2) An integer underflow error in MSO.DLL within the parsing of "Sheet Name" strings can be exploited to cause a buffer overflow when a malicious Office document is opened.
3) An error within the property handling can be exploited to cause a buffer overflow when a malicious Office document containing a malformed property is opened.
Successful exploitation of the vulnerabilities allows execution of arbitrary code.
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