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Re: Linux TCP implementation vulnerable to Denial of Service (CVE 2018-5390)


From: Dave Horsfall <dave () horsfall org>
Date: Fri, 10 Aug 2018 09:29:05 +1000 (EST)

On Thu, 9 Aug 2018, Stiepan wrote:

Could you please provide some more details on the issue? About the same period, our secure e-mail provider suffered an unprecedented DDoS with some e-mail messages never reaching us.

Would this be the well-known TCP re-assembly bug? Send lots of small packets (say out of order), and the CPU spends most of its time in glueing them back together.

-- Dave


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