From owner-freebsd-security@freebsd.org Wed Jul 3 15:00:21 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 4991915D67D1 for ; Wed, 3 Jul 2019 15:00:21 +0000 (UTC) (envelope-from mike@sentex.net) Received: from pyroxene.sentex.ca (unknown [IPv6:2607:f3e0:0:3::18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "pyroxene.sentex.ca", Issuer "Let's Encrypt Authority X3" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 59014772B0 for ; Wed, 3 Jul 2019 15:00:20 +0000 (UTC) (envelope-from mike@sentex.net) Received: from [192.168.43.29] ([192.168.43.29]) by pyroxene.sentex.ca (8.15.2/8.15.2) with ESMTPS id x63F0IHH054172 (version=TLSv1.2 cipher=AES128-SHA bits=128 verify=NO) for ; Wed, 3 Jul 2019 11:00:19 -0400 (EDT) (envelope-from mike@sentex.net) Subject: Re: FreeBSD Security Advisory FreeBSD-SA-19:10.ufs To: freebsd-security@freebsd.org References: <20190703004924.8A5411A7D5@freefall.freebsd.org> From: mike tancsa Message-ID: <64088617-ef63-d1b7-06a0-7f73d685769e@sentex.net> Date: Wed, 3 Jul 2019 11:00:19 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20190703004924.8A5411A7D5@freefall.freebsd.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-US X-Rspamd-Queue-Id: 59014772B0 X-Spamd-Bar: + Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of mike@sentex.net designates 2607:f3e0:0:3::18 as permitted sender) smtp.mailfrom=mike@sentex.net X-Spamd-Result: default: False [1.65 / 15.00]; ARC_NA(0.00)[]; RDNS_NONE(1.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f3e0::/32]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-security@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-0.48)[-0.479,0]; DMARC_NA(0.00)[sentex.net]; NEURAL_SPAM_SHORT(0.21)[0.211,0]; MX_GOOD(-0.01)[cached: smtp.sentex.ca]; NEURAL_HAM_MEDIUM(-0.82)[-0.819,0]; IP_SCORE(-0.45)[ipnet: 2000::/3(-1.47), asn: 12874(-0.83), country: IT(0.03)]; 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]; HFILTER_HOSTNAME_UNKNOWN(2.50)[]; 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: Wed, 03 Jul 2019 15:00:21 -0000 On 7/2/2019 8:49 PM, FreeBSD Security Advisories wrote: > Special note: This update also adds the -z flag to fsck_ffs to have it scrub > the leaked information in the name padding of existing directories. It only > needs to be run once on each UFS/FFS filesystem after a patched kernel is > installed and running. > > # freebsd-update install > > Afterwards, reboot the system and run: > > # fsck -t ufs -f -p -T ufs:-z > > to clean up your existing filesystems. > Doesnt this need to be run in single user mode with the file system not mounted RW ?     ---Mike