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.
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Subject: Windows Packet Fragmentation Handling Denial of Service Vulnerability
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