IPFilter 3.4.16 and earlier does not include sufficient session
information in its cache, which allows remote attackers to bypass
access restrictions by sending fragmented packets to a restricted port
after sending unfragmented packets to an unrestricted port.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20010408 A fragmentation attack against IP Filter
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