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[109.90.125.150]) by smtp.gmail.com with ESMTPSA id gz8sm5302599ejb.38.2021.05.17.08.26.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 17 May 2021 08:26:37 -0700 (PDT) Subject: Re: Exim CVEs (21Nails) To: Leo Famulari References: <167164ca-dd47-e1ea-4b5b-4ae973dca222@gmail.com> From: Taylan Kammer Message-ID: <05916828-a36c-3d65-79fe-6ca1a6c543f1@gmail.com> Date: Mon, 17 May 2021 17:26:36 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2a00:1450:4864:20::631; envelope-from=taylan.kammer@gmail.com; helo=mail-ej1-x631.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Guix Devel Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1621265231; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=h1vO+dSGKVHMLv0j3xDdo99mk7cyMefRnIWkxaJdg+c=; b=tNrzx9Foam+KfEES/WqwbO+uVkYRGTCpXae0QoTUVkIHE1cramZaoLcziVkOfrG5YKfRuf KqkqM6LTytiZjevwbInCCzVOrw9NwojsCkUrzHq2Vsh0qhHS4iGGUGUb8cEVd4TF9jfEcg SCtXuT6qDfsIlBHn+c4XvJ/nxDQrT9xZKYVmlzVVKOZ5sd7NaRk1hKmJuwPTdVjXFCJr7y OWXbByaghSuaYl/WeaGrRoLSJOPl2FL/KgcW/hNpo6aRGFhGXiVNZ5VHL73ZE560GUS644 PkJzBlrx3pwdrjwePciAO5wup9jK6BR+9EHBj9zISw1jyumBAJ4ChOXFEX9jrQ== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1621265231; a=rsa-sha256; cv=none; b=MuPLNzT5xWeWRo9Ycaj/bY4PsKSEREtRK/hns359cO4TKTFu5XGUK1gDeAErZZNrbzIytK ErnIRzkK5ExQcSl4/bupOs2/td9J7RWvCesuRHXkeKa4Tk3CqZTUaaFDekjc2LT8pym2Hl Dc4e0XRzeGMJEAMlbDnYOdcguD4tU3W+rGFJPBLAWsTyUl9c7XY2qn8y2eYjWjQ3km5f1E SUlp70CAqm6HDpW5MIfF1O4yfpdmOWYja73+M7kRt1PgSVubv98LlegPlC14ZJF6METl/p u1p9/b4j9sNiD1+5Wg/EriBjKxNa16ks5kvC0UgsZUplBJCrg8o/GZBr2YbEhw== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=qrd9fuGl; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: -1.64 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=qrd9fuGl; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: F2CB621E3B X-Spam-Score: -1.64 X-Migadu-Scanner: scn0.migadu.com X-TUID: vpI0H27UE0HL On 17.05.2021 16:44, Leo Famulari wrote: > On Mon, May 17, 2021 at 12:10:26PM +0200, Taylan Kammer wrote: >> Hi Guix people, >> >> Just wanted to make sure everyone's aware, since we package Exim: >> >> https://blog.qualys.com/vulnerabilities-research/2021/05/04/21nails-multiple-vulnerabilities-in-exim-mail-server >> >> "Last fall, the Qualys Research Team engaged in a thorough code audit of Exim >> and discovered 21 unique vulnerabilities. Ten of these vulnerabilities can be >> exploited remotely. Some of them leading to provide root privileges on the >> remote system. And eleven can be exploited locally with most of them can be >> exploited in either default configuration or in a very common configuration. >> Some of the vulnerabilities can be chained together to obtain a full remote >> unauthenticated code execution and gain root privileges on the Exim Server. >> Most of the vulnerabilities discovered by the Qualys Research Team for e.g. >> CVE-2020-28017 affects all versions of Exim going back all the way to 2004 >> (going back to the beginning of its Git history 17 years ago)." > > Fixed in commit 4ca8a00263 (gnu: Exim: Update to 4.94.2 [security > fixes].) > > https://git.savannah.gnu.org/cgit/guix.git/commit/?id=4ca8a002633f5d5c88c689fd41a686b5cdff33ec > On the same day that article was published, neat! :-) -- Taylan