Microsoft Patches Windows DNS, Kernel Flaws
Microsoft has released software patches fixing a handful of critical bugs in the Windows kernel, as well as flaws in the Windows Directory Name System and SChannel security software.
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The software vendor rates the three Windows kernel bugs as critical because they could be used to create attack code that would run unauthorized software on a victim’s machine. The SChannel and DNS bugs are given the less-scary rating of "important" by Microsoft, meaning the company doesn’t think they’re as likely to be used to take over a PC.