Date: Wed, 27 Nov 2013 17:10:37 +0100 From: Cristiano Deana <cristiano.deana@gmail.com> To: Tom Evans <tevans.uk@googlemail.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: [request] ntp upgrade Message-ID: <CAO82ECH8YXswVMuxzcnjfE9-KRvD-aKh6sRVJ7odRpB02aCXrA@mail.gmail.com> In-Reply-To: <CAFHbX1%2B4%2BydUf=4VTrkP5TyQHxDc31F8Uh48mVzyyfoDpsMLYA@mail.gmail.com> References: <CAO82ECHMS-JUWC4TGwZpfU0opKE-2rOgW8RLOiR23RzVKgFJ3w@mail.gmail.com> <CAFHbX1%2B4%2BydUf=4VTrkP5TyQHxDc31F8Uh48mVzyyfoDpsMLYA@mail.gmail.com>
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On Wed, Nov 27, 2013 at 5:06 PM, Tom Evans <tevans.uk@googlemail.com> wrote: > > There is a bug in older versions (< 4.2.7) who allows attacker use an ntp > > server to DDoS. This has been corrected in new version: > > https://cert.litnet.lt/en/docs/ntp-distributed-reflection-dos-attacks > > > > This attack seems to be increasing in the last few weeks. > > > > net/ntp-devel is Ok. > > > ntp 4.2.4p8 isn't vulnerable. > > http://www.cvedetails.com/vulnerability-list/vendor_id-2153/NTP.html > > The reflection attack is the first in the list, 4.2.4p7 and below are > affected. Thank you, Tom for your quick reply. That is not the same bug. I had two ntpd with 4.2.4p8 used the last days to DDoS. I found the link below, used net/ntp-devel and the abuse was gone. -- Cris, member of G.U.F.I Italian FreeBSD User Group http://www.gufi.org/
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