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[193.110.157.125]) by mx.google.com with SMTP id d21-20020ac85ad5000000b004359c347edbsi352774qtd.144.2024.04.17.17.12.03 for ; Wed, 17 Apr 2024 17:12:03 -0700 (PDT) Received-SPF: pass (google.com: domain of oss-security-return-30048-linux.lists.archive=gmail.com@lists.openwall.com designates 193.110.157.125 as permitted sender) client-ip=193.110.157.125; Authentication-Results: mx.google.com; dkim=pass header.i=@ucc.asn.au header.s=ucc-2016-3 header.b=YGGGFLaW; dkim=pass header.i=@ucc.asn.au header.s=ucc-2016-3 header.b=YGGGFLaW; spf=pass (google.com: domain of oss-security-return-30048-linux.lists.archive=gmail.com@lists.openwall.com designates 193.110.157.125 as permitted sender) smtp.mailfrom="oss-security-return-30048-linux.lists.archive=gmail.com@lists.openwall.com"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=ucc.asn.au Received: (qmail 1167 invoked by uid 550); 18 Apr 2024 00:11:42 -0000 Mailing-List: contact oss-security-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Reply-To: oss-security@lists.openwall.com Delivered-To: mailing list oss-security@lists.openwall.com Received: (qmail 1128 invoked from network); 18 Apr 2024 00:11:42 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=ucc.asn.au; s=ucc-2016-3; t=1713399084; bh=wR0NiR0bUP7YXsUYH5pfSLQMR3WAvCSzdLX3d2fHTag=; h=Date:From:To:Subject:In-Reply-To:References:From; b=YGGGFLaW3xp4V+FuGY2YuXKYJOpRzJDof4RDj5j4t8JAiUQs6WMhP/puZYaATmbbX tra6KPAqH5smVRJY+qwl90iBgt1hIuYBu6pnqyr4pyr04EIFUo/bYYvgQu6Rr9IQJ6 gCKP83nVXUmD2iy3h7FUIxS4TZYJZHdqG96zAi6Y= Authentication-Results: OpenDMARC; dmarc=pass (p=none dis=none) header.from=ucc.asn.au Authentication-Results: OpenDMARC; spf=pass smtp.mailfrom=ucc.asn.au DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=ucc.asn.au; s=ucc-2016-3; t=1713399084; bh=wR0NiR0bUP7YXsUYH5pfSLQMR3WAvCSzdLX3d2fHTag=; h=Date:From:To:Subject:In-Reply-To:References:From; b=YGGGFLaW3xp4V+FuGY2YuXKYJOpRzJDof4RDj5j4t8JAiUQs6WMhP/puZYaATmbbX tra6KPAqH5smVRJY+qwl90iBgt1hIuYBu6pnqyr4pyr04EIFUo/bYYvgQu6Rr9IQJ6 gCKP83nVXUmD2iy3h7FUIxS4TZYJZHdqG96zAi6Y= MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Thu, 18 Apr 2024 08:11:24 +0800 From: Matt Johnston To: oss-security@lists.openwall.com In-Reply-To: <661F3331.3020408@gmail.com> References: <20240329155126.kjjfduxw2yrlxgzm@awork3.anarazel.de> <20240331202502.GA21116@openwall.com> <20240416225900.GA23474@openwall.com> <661F3331.3020408@gmail.com> Message-ID: <4eaf6a34fd8459284e1a6967c68db93f@ucc.asn.au> X-Sender: matt@ucc.asn.au User-Agent: Roundcube Webmail/1.3.17 Subject: Re: [oss-security] backdoor in upstream xz/liblzma leading to ssh server compromise On 2024-04-17 10:25 am, Jacob Bachmeyer wrote: > see that particular slowdown? (Not the backdoor initialization making > sshd take longer to start up---a running sshd taking longer to reject > a session for a nonexistent account, unless Andres Freund forgot to > tell us that he was running sshd from inetd and thereby including sshd > startup latency in his measurements.) Recent OpenSSH always re-execs for each incoming connection (for fresh ASLR) so it's always similar to inetd startup. Cheers, Matt