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([2804:389:101e:28a1:3909:2ad4:d69:77f3]) by smtp.gmail.com with ESMTPSA id b21sm5327540qkk.61.2020.06.12.15.27.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 12 Jun 2020 15:27:58 -0700 (PDT) Mime-Version: 1.0 (1.0) Subject: Re: Odd ssh sessions From: =?utf-8?Q?Lucas_Nali_de_Magalh=C3=A3es?= In-Reply-To: <5B657D00-9DD3-43BC-A54C-C96ECBD5C14E@gmail.com> Cc: freebsd-security@freebsd.org Date: Fri, 12 Jun 2020 19:27:56 -0300 Message-Id: References: <5B657D00-9DD3-43BC-A54C-C96ECBD5C14E@gmail.com> To: Carlo Strub X-Mailer: iPhone Mail (17F80) X-Rspamd-Queue-Id: 49kFjX2KgQz4BGp X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=RRgInnXW; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of rollingbits@gmail.com designates 2607:f8b0:4864:20::732 as permitted sender) smtp.mailfrom=rollingbits@gmail.com X-Spamd-Result: default: False [-2.78 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; RCVD_COUNT_THREE(0.00)[3]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; NEURAL_HAM_SHORT(-0.88)[-0.877]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; MID_RHS_MATCH_FROM(0.00)[]; R_MIXED_CHARSET(0.62)[subject]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.03)[-1.026]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::732:from]; RCVD_TLS_ALL(0.00)[] Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 12 Jun 2020 22:28:01 -0000 >> On Jun 12, 2020, at 7:10 PM, Lucas Nali de Magalh=C3=A3es wrote: > =EF=BB=BF > =EF=BB=BF >> On Jun 12, 2020, at 3:23 AM, Carlo Strub wrote: >>> On Fri, 5 Jun 2020, 20:48 Lucas Nali de Magalh=C3=A3es, wrote: >>> On Jun 5, 2020, at 3:45 PM, Lucas Nali de Magalh=C3=A3es wrote: >>>>=20 >>>> I've an old machine where I play with FreeBSD and after a while off, I= came back and noted that >>>> sometimes when I enter an ssh session part of the text repeats. It can b= e many lines or it can be >>>> just one or even it can be none. So it also looks like I found a memory= problem. Is it just me? >>> And I'm going from FreeBSD 12.1-p3 to 12.1-p5 in this case. >=20 >> =EF=BB=BFCan you elaborate on what steps you are doing to get to such a s= tate? >=20 >=20 >=20 > I wrote in the hope it was somewhat easy, sorry. I've difficulty in reprod= ucing it myself. Network is not > very reliable in it and I first though it was the WiFi but I observed it o= ver Ethernet IPv6, too. My sessions > have some "host not found" and "connection lost." I access from a Windows= 10 machine. I've no idea if > the things are related or not. I hope it have no relation with my typos. T= oday it was stable and I tried to > use the sftp but Windows (for the first time) tried to resolve the IPv6 ad= dress and didn't find the host. > The next ssh sessions had the line duplication problem. It's a 32bit Intel= Celeron M notebook used for > experimentation with customized FreeBSD (with make.conf and src.conf). >=20 $ cat /etc/make.conf SENDMAIL_CFLAGS+=3D-I/usr/local/include/sasl -DSASL SENDMAIL_LDFLAGS+=3D-L/usr/local/lib SENDMAIL_LDADD+=3D-lsasl2 CPUTYPE=3Dyonah DEFAULT_VERSIONS=3Dpython=3D3.7 python3=3D3.7 bdb=3D6 llvm=3D80 # perl5=3D5.= 32 TESSERACT_LANGS=3Dosd eng enm fra frm ita ita_old por $ cat /etc/src.conf #WITHOUT_BINUTILS=3D"YES" WITH_CLANG_EXTRAS=3D"YES" WITH_CLANG_FULL=3D"YES" WITHOUT_LLVM_TARGET_ALL=3D"YES" WITH_CTF=3D"YES" WITH_RETPOLINE=3D"YES" WITH_KERNEL_RETPOLINE=3D"YES" WITH_PIE=3D"YES" WITH_NAND=3D"YES" WITH_SORT_THREADS=3D"YES" WITH_BSD_GREP=3D"YES" WITHOUT_PC_SYSINSTALL=3D"YES" WITHOUT_BSDINSTALL=3D"YES" WITHOUT_FREEBSD_UPDATE=3D"YES" WITHOUT_SVNLITE=3D"YES" #WITHOUT_UNBOUND=3D"YES" WITHOUT_NLS=3D"YES" WITHOUT_SYSCONS=3D"YES" WITHOUT_EE=3D"YES" #WITHOUT_INET=3D"YES" WITHOUT_FLOPPY=3D"YES" WITHOUT_HYPERV=3D"YES" WITHOUT_LOADER_ZFS=3D"YES" WITHOUT_ZFS=3D"YES" WITHOUT_QUOTAS=3D"YES" --=20 rollingbits =E2=80=94 =F0=9F=93=A7 rollingbits@gmail.com =F0=9F=93=A7 rollin= gbits@terra.com.br =F0=9F=93=A7 rollingbits@yahoo.com =F0=9F=93=A7 rollingbi= ts@globo.com =F0=9F=93=A7 rollingbits@icloud.com