From owner-freebsd-security@freebsd.org Wed Jul 10 16:37:56 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 510F015DBF82 for ; Wed, 10 Jul 2019 16:37:56 +0000 (UTC) (envelope-from labadore@protonmail.ch) Received: from mail-40133.protonmail.ch (mail-40133.protonmail.ch [185.70.40.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.protonmail.ch", Issuer "SwissSign Server Silver CA 2014 - G22" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E3D1093CF8 for ; Wed, 10 Jul 2019 16:37:54 +0000 (UTC) (envelope-from labadore@protonmail.ch) Date: Wed, 10 Jul 2019 16:37:45 +0000 To: "freebsd-security@freebsd.org" From: Kevin Reply-To: Kevin Subject: FreeBSD MDS Mitigation Message-ID: <1-e0UcMiG_xiNHOUE9o3duPx3uN6Loigx376zYIhPFYNE-khNPR1vB-gu5TAG-L_V9AL7gNrWsyurZ8bBcW1zMayEPgkl2SpalOGkrGfTEE=@protonmail.ch> Feedback-ID: vVJ3pnYCRK31dm1Q4R1rf9X-8Wb2rK2QgI7ocPPo10L7nUIv7rNuZyrvNjMa_rMXgpJDlWTCrLXmUVSnNX-EiA==:Ext:ProtonMail MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-1.2 required=7.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on mail.protonmail.ch X-Rspamd-Queue-Id: E3D1093CF8 X-Spamd-Bar: ------- X-Spamd-Result: default: False [-7.79 / 15.00]; ARC_NA(0.00)[]; HAS_REPLYTO(0.00)[labadore@protonmail.ch]; R_DKIM_ALLOW(-0.20)[protonmail.ch:s=default]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip4:185.70.40.0/24]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(-3.74)[ip: (-9.85), ipnet: 185.70.40.0/24(-4.90), asn: 19905(-3.91), country: US(-0.06)]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; MX_GOOD(-0.01)[mailsec.protonmail.ch,mail.protonmail.ch]; DKIM_TRACE(0.00)[protonmail.ch:+]; DMARC_POLICY_ALLOW(-0.50)[protonmail.ch,quarantine]; NEURAL_HAM_SHORT(-0.93)[-0.934,0]; TO_DN_EQ_ADDR_ALL(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; RCVD_IN_DNSWL_LOW(-0.10)[133.40.70.185.list.dnswl.org : 127.0.5.1]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:19905, ipnet:185.70.40.0/24, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[protonmail.ch.dwl.dnswl.org : 127.0.5.0] 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: Wed, 10 Jul 2019 16:37:56 -0000 Hello list. I am reading this page about FreeBSD security [ https://vez.mrs= k.me/freebsd-defaults.html ] and it says the Intel MDS mitigation is off by= default. So I tried. % sysctl hw.mds_disable_state hw.mds_disable_state: inactive Now I see the instructions in the advisory, but what about anyone who didn'= t? Or who did a new install and didn't read past advisories? I have an Intel CPU that is vulnerable. By applying the update and installi= ng the microcode package, I thought I was safe. Why? Why does FreeBSD let its users be vulnerable?