From owner-freebsd-security@freebsd.org Tue Jun 18 14:36:56 2019 Return-Path: Delivered-To: freebsd-security@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7C5C815BEDEF for ; Tue, 18 Jun 2019 14:36:56 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from gilb.zs64.net (gilb.zs64.net [IPv6:2a00:14b0:4200:32e0::1ea]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "gilb.zs64.net", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2215C8031A for ; Tue, 18 Jun 2019 14:36:54 +0000 (UTC) (envelope-from stb@lassitu.de) Received: by gilb.zs64.net (Postfix, from stb@lassitu.de) id 5153A1BE636 for ; Tue, 18 Jun 2019 14:36:52 +0000 (UTC) From: Stefan Bethke Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\)) Subject: CVE-2019-5599: SACK Slowness (FreeBSD 12 using the RACK TCP Stack) Message-Id: <7AC3FC6A-99CD-4C59-9822-18E4B498285D@lassitu.de> Date: Tue, 18 Jun 2019 16:36:50 +0200 To: freebsd-security@freebsd.org X-Mailer: Apple Mail (2.3445.104.11) X-Rspamd-Queue-Id: 2215C8031A X-Spamd-Bar: + Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of stb@lassitu.de designates 2a00:14b0:4200:32e0::1ea as permitted sender) smtp.mailfrom=stb@lassitu.de X-Spamd-Result: default: False [1.53 / 15.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-security@freebsd.org]; TO_DN_NONE(0.00)[]; NEURAL_SPAM_MEDIUM(0.08)[0.084,0]; RCPT_COUNT_ONE(0.00)[1]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MX_GOOD(-0.01)[gilb.zs64.net]; NEURAL_SPAM_LONG(0.09)[0.089,0]; DMARC_NA(0.00)[lassitu.de]; NEURAL_SPAM_SHORT(0.85)[0.851,0]; IP_SCORE(0.31)[ipnet: 2000::/3(0.37), asn: 12874(1.15), country: IT(0.05)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:12874, ipnet:2000::/3, country:IT]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Jun 2019 14:36:56 -0000 h= ttps://github.com/Netflix/security-bulletins/blob/master/advisories/third-= party/2019-001.md Are stock kernels/configurations affected? If so, will a fix or = workaround be incorporated? Thanks, Stefan --=20 Stefan Bethke Fon +49 151 14070811