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Windows Packet Fragmentation Handling Denial of Service Vulnerability

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Release Date:  2004-10-01    Views:  19,869

Secunia Advisory SA12670

Where:

From remote

Impact:

DoS

Solution Status:

Unpatched

CVE Reference(s):

No CVE references.

Description


Gandalf The White has reported a variant of some known vulnerabilities in Windows, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the processing of fragmented packets. This can be exploited by sending a large number of small fragmented packets where some fragments are missing and then sending the final fragment repeatedly.

Successful exploitation may consume a large amount of CPU resources on a vulnerable system and may cause legitimate fragmented packets to be dropped, if a sufficient amount of attacking systems is used.


Solution:
Secunia is currently not aware of a solution.

Provided and/or discovered by:
Gandalf The White

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Windows Packet Fragmentation Handling Denial of Service Vulnerability

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