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Microsoft release an emergency Windows 7 update, just before the end of the year

Microsoft issues an update to Windows, fixes a vulnerability in the .NET Framework

By Anthony Garreffa on Dec 30, 2011 05:21 am CST - 0 mins, 53 secs reading time

Microsoft have released a rare out-of-band update to fix a vulnerability in the .NET Framework. The update comes weeks before the next regularly scheduled "Patch Tuesday" in mid-January, and addresses a flaw that could allow attackers to exploit hash tables to perform a denial-of-service (DoS) attack against a website built with Microsoft's ASP.NET application framework.

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DoS attacks usually require thousands of malware-controlled systems in a botnet to overwhelm a site with requests. This opening would allow an attacker to cripple a vulnerable site by sending a certain type of HTTP request. Each of these requests would consume 100-percent of one CPU core. As you can imagine, the more of these requests, the more CPU power that is zapped away.

Microsoft says "Attacks targeting this type of vulnerability are generically known as hash collision attacks." They also added that the problem is not specific to Microsoft's Web services as it affects PHP 5, Java, .NET, v8 and even PHP 4, Ruby and Python. The people behind these platforms will release updates soon, but the holidays will dampen these efforts.

Anthony Garreffa

ABOUT THE AUTHOR - Anthony Garreffa

Anthony is a long time PC enthusiast with a passion of hate for games to be built around consoles. With FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with high-end, custom-built PCs. His addiction to GPU technology is unwavering, and with next-gen NVIDIA GPUs about to launch alongside 4K 144Hz HDR G-Sync gaming monitors and BFGDs (65-inch 4K 120Hz HDR G-Sync TVs) there has never been a time to be more excited about technology.

NEWS SOURCE:techspot.com

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