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Wed, 9 Aug 2023 20:13:02 -0400 (EDT) Date: Thu, 10 Aug 2023 01:13:00 +0100 From: void To: freebsd-security@freebsd.org Subject: Re: Downfall microcode update Message-ID: Mail-Followup-To: freebsd-security@freebsd.org References: <66285345-7ab9-931a-fbb4-fd988f629e74@grosbein.net> <867cq4tuot.fsf@ltc.des.no> List-Id: Security issues List-Archive: https://lists.freebsd.org/archives/freebsd-security List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-security@freebsd.org X-BeenThere: freebsd-security@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <867cq4tuot.fsf@ltc.des.no> X-Spamd-Result: default: False [-3.63 / 15.00]; DWL_DNSWL_LOW(-1.00)[messagingengine.com:dkim]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.998]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_SPF_ALLOW(-0.20)[+ip4:66.111.4.26]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm3,messagingengine.com:s=fm3]; RWL_MAILSPIKE_GOOD(-0.10)[66.111.4.26:from]; RCVD_IN_DNSWL_LOW(-0.10)[66.111.4.26:from]; MIME_GOOD(-0.10)[text/plain]; NEURAL_SPAM_MEDIUM(0.07)[0.067]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; PREVIOUSLY_DELIVERED(0.00)[freebsd-security@freebsd.org]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:19151, ipnet:66.111.4.0/24, country:US]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_NONE(0.00)[]; FREEMAIL_FROM(0.00)[f-m.fm]; MLMMJ_DEST(0.00)[freebsd-security@freebsd.org]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; RCVD_VIA_SMTP_AUTH(0.00)[] X-Spamd-Bar: --- X-Rspamd-Queue-Id: 4RLnSc21MZz4Vts On Wed, Aug 09, 2023 at 11:46:10AM +0200, Dag-Erling Smørgrav wrote: >Eugene Grosbein writes: >> cpupdate_enable="YES" # in /etc/rc.conf should be enough > >You mean > >microcode_update_enable="yes" > >DES What's the proper way then, for intel? 1. install sysutils/cpupdate and enable it in rc.conf ? 2. microcode_update_enable="yes" in rc.conf ? 3. in /boot/loader.conf: cpu_microcode_load="YES" cpu_microcode_name="/boot/firmware/intel-ucode.bin" ? All 3 ? Just 1 & 2? Is just #3 sufficient? Make cron attempt to download updates daily, via service cpupdate download ? Is CPM needed? The manpage for cpupdate has this: CPUPDATE(8) FreeBSD System Manager's Manual CPUPDATE(8) NAME cpupdate TO BE DONE: MANPAGE FreeBSD 13.2-STABLE January 15, 2018 FreeBSD 13.2-STABLE --