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Microsoft

+ - Microsoft Issuing Emergency Security Update Thurs.->

Submitted by wiredmikey
wiredmikey (1824622) writes "In a rare move, Microsoft is breaking its normal procedures and will issue an emergency out-of-band security update on Thursday to address a hash collision attack vulnerability that came into the spotlight yesterday, and affects various Web platforms industry-wide.

The vulnerability is NOT specific to Microsoft technologies and has been discovered to impact PHP 5, Java, .NET, and Google’s v8, while PHP 4, Ruby, and Python are somewhat vulnerable.

Microsoft plans to release the bulletin on December 29, 2011, at 10:00 AM Pacific Time, and said it would addresses security vulnerabilities in all supported releases of Microsoft Windows.

“The impact of this vulnerability is similar to other Denial of Service attacks that have been released in the past, such as the Slowloris DoS or the HTTP POST DoS,” said security expert Chirs Eng. “Unlike traditional DoS attacks, they could be conducted with very small amounts of bandwidth. This hash table multi-collision bug shares that property. What’s particularly unique about this bug is that it affects a broader range of platforms and technologies in a virtually identical way.”"

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Microsoft Issuing Emergency Security Update Thurs.

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