Core Security Technologies Advisory - Windows kernel is prone to a security vulnerability when executing the (GDI support) function 'RFONTOBJ::bTextExtent' located in 'win32k.sys'. This vulnerability could be exploited by an malicious user to crash the windows kernel by calling the user mode function 'NtGdiGetTextExtent' with specially crafted arguments. Microsoft admits that this vulnerability may allow Elevation of Privilege attacks but did not provide further technical details.
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