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     áòèé÷ :: Security-alerts
Security-Alerts mailing list archive (security-alerts@yandex-team.ru)

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[security-alerts] FW: [SA22592] Microsoft Windows Internet Connection Sharing Denial of Service



> 
> TITLE:
> Microsoft Windows Internet Connection Sharing Denial of Service
> 
> SECUNIA ADVISORY ID:
> SA22592
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/22592/
> 
> CRITICAL:
> Less critical
> 
> IMPACT:
> DoS
> 
> WHERE:
> From local network
> 
> OPERATING SYSTEM:
> Microsoft Windows XP Home Edition
> http://secunia.com/product/16/
> Microsoft Windows XP Professional
> http://secunia.com/product/22/
> 
> DESCRIPTION:
> h07 has discovered a vulnerability in Microsoft Windows, which can be
> exploited by malicious people to cause a DoS (Denial of Service).
> 
> The vulnerability is caused due to a NULL pointer dereference error
> in Windows NAT Helper Components (ipnathlp.dll). This can be
> exploited to crash the service via a specially crafted DNS query.
> 
> Successful exploitation requires that Internet Connection Sharing is
> enabled and the query is received from a client on the shared network
> interface.
> 
> The vulnerability is confirmed in a fully patched Windows XP SP2
> system. Other versions may also be affected.
> 
> SOLUTION:
> Use another way of sharing the Internet connection.
> 
> PROVIDED AND/OR DISCOVERED BY:
> h07
> 
> ORIGINAL ADVISORY:
> http://milw0rm.com/exploits/2672
> 



 




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