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(Build user takeover vulnerability) Message-ID: <87ldyhhynj.fsf_-_@protonmail.com> Feedback-ID: 7805494:user:proton X-Pm-Message-ID: ae12cb56a72f9450aec6b29419e4c6da9085670c MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=185.70.40.131; envelope-from=john.kehayias@protonmail.com; helo=mail-40131.protonmail.ch 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, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-guix@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-guix-bounces+larch=yhetil.org@gnu.org Sender: help-guix-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Spam-Score: -1.54 X-Spam-Score: -1.54 X-Migadu-Queue-Id: 8F3667ACB X-Migadu-Scanner: mx12.migadu.com X-TUID: CAReEegXyTfG Hi Guix-ers, (Sent to several lists for wider coverage; apologies if you receive this me= ssage multiple times.) A vulnerability in the guix-daemon has been found which allows a local user= to gain privileges of a build user. Everyone is strongly urged to upgrade = immediately. This has been patched in two recent commits: and described in detail, with a proof of concept which you can use to check= your system as well as upgrade instructions, in this blog post: Upon a guix pull you should also see a news entry with information about th= is issue. Please also see the above blog post for all the details, especial= ly on how to make sure you have upgraded the guix-daemon to mitigate this e= xploit. For users of Guix System, the short of it is to pull, reconfigure, = and restart guix-daemon. While for Guix on a foreign distro, you will need = to use sudo --login guix pull and restart the guix-daemon service, for inst= ance with systemctl if systemd is used. Again, please see the above blog po= st and documentation for further details. Enormous thanks to Caleb Ristvedt for bringing this to our attention, fixin= g the issue, and preparing patches, news entry, and blog post. Thanks also = to Ludovic Court=C3=A8s for helping and shepherding this through in a timel= y manner. As a reminder, please report any security issues or concerns to the Guix Se= curity Team via guix-security@gnu.org. Thank you all for using Guix and please upgrade now! John, on behalf of Guix Security