From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by sourceware.org (Postfix) with ESMTPS id DD4ED3858C24 for ; Fri, 5 Apr 2024 21:16:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org DD4ED3858C24 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org DD4ED3858C24 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2a00:1450:4864:20::32a ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1712351772; cv=none; b=HrA2l+U5SC7l2KGTvFQfGJwBt1W28VicbXAqL0FPRYVboWPaHEmaxHLfpQYBCFLw/7u4Dn/Yv1KrcNW3dLJPXQc7eoGxHdynY7CyfkJfs/x2mow1V8A5CxZaeE7pNip7aU7qkjieBKxbdBizqYrH9xYycjPjMUc7Jq4sP6ZiiSI= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1712351772; c=relaxed/simple; bh=salGC3wFms6nmciOD5aE/jBwC+Lz1UDIUvZfFzl4JpM=; h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To; b=U5vLfTSpQvzfkxQ9qERrIw8JVYLo9hmBh1p9Oyj9bTuzBdMx5QvPXlJeaK5UHjNZyiAstvnH5HBagXPg3vNvGM/COS9Uo7av5fJ5VL0uSfIPrWcGF8M2W1gGaUqaEicDc4pIRwOZtVBx1QGUTkhHvNdcM5fjamBiPK6FYPvQidQ= ARC-Authentication-Results: i=1; server2.sourceware.org Received: by mail-wm1-x32a.google.com with SMTP id 5b1f17b1804b1-4162b8cb3e9so21134395e9.0 for ; Fri, 05 Apr 2024 14:16:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712351766; x=1712956566; darn=gcc.gnu.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=salGC3wFms6nmciOD5aE/jBwC+Lz1UDIUvZfFzl4JpM=; b=PLf9Z3eQjE/WYegZPvoHsOwQvoKnbs9MfR7oNdntFIV2rPg8yeaCeJw8r4FU1EbVKY hJFjeqU0Hx73uULNdsQkcsEeHY6xrrQKyTbRVQ56BaNIyPan9vnzYKo/yptzJzzum/jC LoId7Xf6EL9k+6D611Ydy24E7a2J1D9KEsEFVGWOKQur3Ua1FzHl+nC/C4Q8Ptmr+nLZ 5OLvQE6ey+Kq0ULkpIpjavzcPg9q6yh1c6xou964n0DdslGtENMPjUCh53ldA0i4eDqC ga0wF06df+OnXEuKW/8QU0RxgOBiAom/qWkDyRY+vdVoowcKV+NKznMaETSNkezdvtvv 2ioQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712351766; x=1712956566; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=salGC3wFms6nmciOD5aE/jBwC+Lz1UDIUvZfFzl4JpM=; b=EWNuK7TKk/+e5PiSqrQG6cw3ox84poObegVGBX6ppcbxnhkjBRxF6VzNFF2bNQwaax wA7BoDN/1no0X8EdcTs4f8Qm43DfYOSkaX2ad6x4kOM4nUqPerXui4AbAnxIkC2XiLtx 8uqMQPva1OvEpqvsfIyuq7C/O2tPKzJJTBLR4dbbYaDIWlbVPqeECzFf1NR4mJFrjcg8 Jw001ysRHu6o06Yyw2CoERWzDhzvUJtC+0HHhVvp/MiT8Vx8JTa18BtFzTyOvavQBnbN DtK0Zx09xG+07e9YjBnJgYHWumEYOyypZNTohvwRrhZWiFsRPqalIcS7ZG45CbduuXwA n/7g== X-Forwarded-Encrypted: i=1; AJvYcCUoX7nnxgjQ1bZNcYY8IFm//vGkSmJ3v8MG4TkkKGXljbo5M1ZmWfS09gRq625P3LmbOfOCz4BAx6LKSIzVAeE= X-Gm-Message-State: AOJu0Yy1RbcpCEu+gS9RAEwu+v9nvTegxL0t0QlwYjUFmwrNHSqdyIFk 9rHPuiyHOH0N18Q6Q3uenvbdxxbS+1Iv25RfAJRnv0bwO6D9KW1Ha2UyMg7+dafNgYUi72Efegk pI+Z24Zh2GqKimn0LSwjfcjpObVk= X-Google-Smtp-Source: AGHT+IFr/mk89OIuDrAQJycz/41pho9/CO7z4HflnAOOqjYDCkgQsVY3qY3d4UHeD1DTdmjg2EqLmOygabHMwsrrrz0= X-Received: by 2002:a05:600c:3508:b0:416:2f34:b2e3 with SMTP id h8-20020a05600c350800b004162f34b2e3mr2425012wmq.38.1712351766238; Fri, 05 Apr 2024 14:16:06 -0700 (PDT) MIME-Version: 1.0 References: <20240329203909.GS9427@gnu.wildebeest.org> <20240401150617.GF19478@gnu.wildebeest.org> <12215cd2-16db-4ee4-bd98-6a4bcf318592@cs.ucla.edu> <6239192ba9ff8aad0752309a54b633dc75a57c77.camel@tugraz.at> <8e877d2f-01e0-c786-dea5-265edbdc0c07@suse.de> <8d84f989031aa34eae919f8ff2d3cb4e60faf6a7.camel@gwdg.de> In-Reply-To: <8d84f989031aa34eae919f8ff2d3cb4e60faf6a7.camel@gwdg.de> From: Andrew Sutton Date: Fri, 5 Apr 2024 17:15:55 -0400 Message-ID: Subject: Re: Sourceware mitigating and preventing the next xz-backdoor To: Martin Uecker Cc: Jonathon Anderson , Michael Matz , Ian Lance Taylor , Paul Koning , Paul Eggert , Sandra Loosemore , Mark Wielaard , overseers@sourceware.org, gcc@gcc.gnu.org, binutils@sourceware.org, gdb@sourceware.org, libc-alpha@sourceware.org Content-Type: multipart/alternative; boundary="000000000000c1df8c06155ff6aa" X-Spam-Status: No, score=-3030.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: --000000000000c1df8c06155ff6aa Content-Type: text/plain; charset="UTF-8" > > > > > I think the key difference here is that Autotools allows arbitrarily > generated code to be executed at any time. More modern build systems > require the use of specific commands/files to run arbitrary code, e.g. > CMake (IIRC [`execute_process()`][2] and [`ExternalProject`][3]), Meson > ([`run_command()`][1]), Cargo ([`build.rs`][4]).\ > > To me it seems that Cargo is the absolute worst case with respect to > supply chain attacks. > > It pulls in dependencies recursively from a relatively uncurated > list of projects, puts the source of all those dependencies into a > hidden directory in home, and runs Build.rs automatically with > user permissions. > 100% this. Wait until you learn how proc macros work. --000000000000c1df8c06155ff6aa--