Description: This security update resolves two privately reported vulnerabilities in Windows Search. These vulnerabilities could allow remote code execution if a user opens and saves a specially crafted saved-search file within Windows Explorer or if a user clicks a specially crafted search URL. An attacker who successfully exploited these vulnerabilities could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses the vulnerabilities by modifying the way that Windows Explorer frees memory when saving Windows Search files and by modifying the way that Windows Explorer interprets parameters when parsing the search-ms protocol.
Update type: Critical
Release date: December 9, 2008
Applies to: All
Knowledge base: http://support.microsoft.com/kb/959349
Download link: 32-bit | 64-bit
Comments: Here are the specifics on the vulnerabilities covered by this update: