| 2023-03-02 20:51:21 |
Steve Langasek |
bug |
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added bug |
| 2023-03-02 21:29:25 |
Launchpad Janitor |
branch linked |
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lp:~ubuntu-core-dev/debian-installer/focal-proposed |
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| 2023-03-02 21:37:03 |
Steve Langasek |
nominated for series |
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Ubuntu Focal |
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| 2023-03-02 21:37:03 |
Steve Langasek |
bug task added |
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debian-installer (Ubuntu Focal) |
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| 2023-03-02 21:37:11 |
Steve Langasek |
debian-installer (Ubuntu): status |
New |
Invalid |
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| 2023-03-02 22:26:19 |
Brian Murray |
debian-installer (Ubuntu Focal): status |
New |
Fix Committed |
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| 2023-03-02 22:26:21 |
Brian Murray |
bug |
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added subscriber Ubuntu Stable Release Updates Team |
| 2023-03-02 22:26:22 |
Brian Murray |
bug |
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added subscriber SRU Verification |
| 2023-03-02 22:26:26 |
Brian Murray |
tags |
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verification-needed verification-needed-focal |
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| 2023-03-14 11:15:34 |
Launchpad Janitor |
debian-installer (Ubuntu Focal): status |
Fix Committed |
Fix Released |
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| 2023-03-14 17:18:05 |
Steve Langasek |
description |
[Justification]
There is another round of security updates for secureboot that result in SBAT revocations of all the previous shims/grubs. Since the 20.04.5 point release inadvertently went out without a current UEFI bootloader and was thus already revoked before release, we have agreed to do an exceptional 20.04.6 point release. That should include the current version of shim and grub2.
[Test case]
* Build a daily PROPOSED=1 focal image that pulls in the new d-i boot bits.
* On a system with SecureBoot enabled, boot the 22.04.2 install media. This will cause SBAT to be updated and the system to refuse to boot older shims.
* Install secureboot-db 1.6~20.04.1 from focal-proposed, to force an update of dbx as well.
* Try to boot Ubuntu 20.04.5 media. Confirm that the boot is blocked with a security error.
* Boot the 20.04 daily media. Confirm that the image boots.
[Where problems could occur]
We are pulling grub2-signed and shim2-signed from focal-proposed. If something happens that prevents these from being released, then we would need to respin. Otherwise, this change should only increase the set of machines on which it's possible for us to boot the point release media. |
[Justification]
There is another round of security updates for secureboot that result in SBAT revocations of all the previous shims/grubs. Since the 20.04.5 point release inadvertently went out without a current UEFI bootloader and was thus already revoked before release, we have agreed to do an exceptional 20.04.6 point release. That should include the current version of shim and grub2.
[Test case]
* Build a daily PROPOSED=1 focal image that pulls in the new d-i boot bits.
* On a system with SecureBoot enabled, boot the 22.04.2 install media. This will cause SBAT to be updated and the system to refuse to boot older shims.
* To download the current UEFI revocation list for amd64 and apply it to dbx, run:
* mkdir -p updates/dbx
* wget -O updates/dbx/DBXUpdate.bin https://uefi.org/sites/default/files/resources/DBXUpdate.bin
* sudo sbkeysync --no-default-keystores --keystore ./updates --verbose
* Try to boot Ubuntu 20.04.5 media. Confirm that the boot is blocked with a security error.
* Boot the 20.04 daily media. Confirm that the image boots.
[Where problems could occur]
We are pulling grub2-signed and shim2-signed from focal-proposed. If something happens that prevents these from being released, then we would need to respin. Otherwise, this change should only increase the set of machines on which it's possible for us to boot the point release media. |
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| 2023-03-14 19:30:11 |
Steve Langasek |
debian-installer (Ubuntu Focal): status |
Fix Released |
In Progress |
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| 2023-03-14 19:30:22 |
Steve Langasek |
tags |
verification-needed verification-needed-focal |
verification-failed-focal |
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| 2023-03-14 19:54:15 |
Steve Langasek |
debian-installer (Ubuntu Focal): status |
In Progress |
Fix Committed |
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| 2023-03-14 19:54:20 |
Steve Langasek |
tags |
verification-failed-focal |
verification-needed verification-needed-focal |
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| 2023-03-14 21:28:17 |
Steve Langasek |
tags |
verification-needed verification-needed-focal |
verification-done-focal |
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| 2023-03-14 21:32:04 |
Launchpad Janitor |
debian-installer (Ubuntu Focal): status |
Fix Committed |
Fix Released |
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| 2023-03-14 21:32:08 |
Steve Langasek |
removed subscriber Ubuntu Stable Release Updates Team |
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| 2023-06-03 18:29:31 |
Saptarshi Roy |
bug |
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added subscriber Saptarshi Roy |
