Two vulnerabilities have been identified in Microsoft Office, which could be exploited by attackers to cause a denial of service or take complete control of an affected system.
The first issue is caused by a memory calculation error when processing a malformed string in a specially crafted .rtf file, which could be exploited by attackers to execute arbitrary code by tricking a user into opening a specially crafted document [...]
Solution
Apply patches :
http://www.microsoft.com/technet/security/Bulletin/MS08-026.mspx
Credits
Vulnerabilities reported by Jun Mao, iDefense Labs, wushi (team509) and Zero Day Initiative.
ChangeLog
2008-05-13 : Initial release
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