** Description changed: shim supports disabling validation using shim specific variable, whilst keeping the firmware secureboot on. The state for it, is currently incorrectly parsed on Ubuntu, and thus error message is not printed that machine is booting without signature verification by shim. please pull in fix https://github.com/rhboot/shim/pull/362/files + + [Impact] + + * There is upstream bug report that prevents booting systems, when + mokutil --disable-validation is set. + + * It only impacts shims that are built with ExitBootService check in + place + + * In Ubuntu, we build shim with ExitBootServices check disabled, + therefore we were not affected by this issue directly. But it was felt + that no new shims would be signed unless this patch is included as a + bugfix. + + [Test Plan] + + * Boot with Secureboot on, and mokutil validation on everything should + boot + + * Turn Secureboot off, everything should boot + + * Turn Secureboot on, but turn mokutil validation off, evernthing + should still boot. + + * Note that the above would have failed with 15.4-0buntu1 shim, had we + not built it with disabling ExitBootServices, so this is not a + regression, but to ensure that the included bugfix is correct and + doesn't regress things it claims to keep working. As otherwise no ubuntu + shims have been affected by the upstream issue in question. + + [Where problems could occur] + + * The areas that could regress with this patch are validated in the + Test plan. + + [Other Info] + + * Anything else you think is useful to include + * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board + * and address these questions in advance
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925140 Title: fix insecure mode booting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1925140/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
