Date: Tue, 14 Aug 2018 17:09:38 -0400 From: "David T." <davidmthomsen@...il.com> To: oss-security@...ts.openwall.com Subject: Re: CVE-2018-5391: Linux kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) Is this the same as "SegmentSmack" that came out last week, CVE-2018-5390? Or, what is the difference? On Tue, Aug 14, 2018 at 16:31 Vladis Dronov <vdronov@...hat.com> wrote: > Heololo, > > A flaw named FragmentSmack was found in the way the Linux kernel handled > reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could > use this flaw to trigger time and calculation expensive fragment reassembly > algorithms by sending specially crafted packets which could lead to a CPU > saturation and hence a denial of service on the system. > > External References: > > https://www.kb.cert.org/vuls/id/641765 > > https://access.redhat.com/articles/3553061 > > https://bugzilla.redhat.com/show_bug.cgi?id=1609664 > > Best regards, > Vladis Dronov | Red Hat, Inc. | Product Security Engineer > -- Very respectfully, David M Thomsen
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