Fedora 34: shim 2021-cab258a413 | LinuxSecurity.com

Advisories

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Fedora Update Notification
FEDORA-2021-cab258a413
2021-04-23 21:03:15.426820
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Name        : shim
Product     : Fedora 34
Version     : 15.4
Release     : 4
URL         : https://github.com/rhboot/shim/
Summary     : First-stage UEFI bootloader
Description :
Initial UEFI bootloader that handles chaining to a trusted full bootloader
under secure boot environments. This package contains the version signed by
the UEFI signing service.

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Update Information:

- Update to shim 15.4   - Support for revocations via the ".sbat" section and
SBAT EFI variable   - A new unit test framework and a bunch of unit tests   - No
external gnu-efi dependency   - Better CI   Resolves: CVE-2020-14372   Resolves:
CVE-2020-25632   Resolves: CVE-2020-25647   Resolves: CVE-2020-27749   Resolves:
CVE-2020-27779   Resolves: CVE-2021-20225   Resolves: CVE-2021-20233 - Mark
signed shim packages as protected in dnf.   Resolves: rhbz#1874541 - Conflict
with older fwupd, but don't require it.   Resolves: rhbz#1877751
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ChangeLog:

* Wed Apr 21 2021 Javier Martinez Canillas  - 15.4-4
- Fix handling of ignore_db and user_insecure_mode (pjones)
- Fix booting on pre-UEFI Macs (pjones)
- Fix mok variable storage allocation region (glin)
  Resolves: rhbz#1948432
- Fix the package version in the .sbat data (pjones)
* Tue Apr  6 2021 Peter Jones  - 15.4-3
- Mark signed shim packages as protected in dnf.
  Resolves: rhbz#1874541
- Conflict with older fwupd, but don't require it.
  Resolves: rhbz#1877751
* Tue Apr  6 2021 Peter Jones  - 15.4-2
- Update to shim 15.4
  - Support for revocations via the ".sbat" section and SBAT EFI variable
  - A new unit test framework and a bunch of unit tests
  - No external gnu-efi dependency
  - Better CI
  Resolves: CVE-2020-14372
  Resolves: CVE-2020-25632
  Resolves: CVE-2020-25647
  Resolves: CVE-2020-27749
  Resolves: CVE-2020-27779
  Resolves: CVE-2021-20225
  Resolves: CVE-2021-20233
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References:

  [ 1 ] Bug #1592148 - pxeboot shim crash using newer edk2 firmware
        https://bugzilla.redhat.com/show_bug.cgi?id=1592148
  [ 2 ] Bug #1651016 - kexec/kdump kernel fails to load with EFI secure boot enabled
        https://bugzilla.redhat.com/show_bug.cgi?id=1651016
  [ 3 ] Bug #1874541 - Please mark shim packages as protected packages with DNF
        https://bugzilla.redhat.com/show_bug.cgi?id=1874541
  [ 4 ] Bug #1877751 - fwupd replacing  dbxtool.x86_64 8-13.fc33
        https://bugzilla.redhat.com/show_bug.cgi?id=1877751
  [ 5 ] Bug #1938630 - include new bootloaders on Fedora 34 install media so UEFI Secure Boot enabled systems can boot from them
        https://bugzilla.redhat.com/show_bug.cgi?id=1938630
  [ 6 ] Bug #1948432 - efi: Failed to lookup EFI memory descriptor for 0x000000003a572000
        https://bugzilla.redhat.com/show_bug.cgi?id=1948432
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-cab258a413' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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Fedora 34: shim 2021-cab258a413

April 23, 2021

Summary

Initial UEFI bootloader that handles chaining to a trusted full bootloader

under secure boot environments. This package contains the version signed by

the UEFI signing service.

Update Information:

- Update to shim 15.4 - Support for revocations via the ".sbat" section and SBAT EFI variable - A new unit test framework and a bunch of unit tests - No external gnu-efi dependency - Better CI Resolves: CVE-2020-14372 Resolves: CVE-2020-25632 Resolves: CVE-2020-25647 Resolves: CVE-2020-27749 Resolves: CVE-2020-27779 Resolves: CVE-2021-20225 Resolves: CVE-2021-20233 - Mark signed shim packages as protected in dnf. Resolves: rhbz#1874541 - Conflict with older fwupd, but don't require it. Resolves: rhbz#1877751

Change Log

* Wed Apr 21 2021 Javier Martinez Canillas - 15.4-4 - Fix handling of ignore_db and user_insecure_mode (pjones) - Fix booting on pre-UEFI Macs (pjones) - Fix mok variable storage allocation region (glin) Resolves: rhbz#1948432 - Fix the package version in the .sbat data (pjones) * Tue Apr 6 2021 Peter Jones - 15.4-3 - Mark signed shim packages as protected in dnf. Resolves: rhbz#1874541 - Conflict with older fwupd, but don't require it. Resolves: rhbz#1877751 * Tue Apr 6 2021 Peter Jones - 15.4-2 - Update to shim 15.4 - Support for revocations via the ".sbat" section and SBAT EFI variable - A new unit test framework and a bunch of unit tests - No external gnu-efi dependency - Better CI Resolves: CVE-2020-14372 Resolves: CVE-2020-25632 Resolves: CVE-2020-25647 Resolves: CVE-2020-27749 Resolves: CVE-2020-27779 Resolves: CVE-2021-20225 Resolves: CVE-2021-20233

References

[ 1 ] Bug #1592148 - pxeboot shim crash using newer edk2 firmware https://bugzilla.redhat.com/show_bug.cgi?id=1592148 [ 2 ] Bug #1651016 - kexec/kdump kernel fails to load with EFI secure boot enabled https://bugzilla.redhat.com/show_bug.cgi?id=1651016 [ 3 ] Bug #1874541 - Please mark shim packages as protected packages with DNF https://bugzilla.redhat.com/show_bug.cgi?id=1874541 [ 4 ] Bug #1877751 - fwupd replacing dbxtool.x86_64 8-13.fc33 https://bugzilla.redhat.com/show_bug.cgi?id=1877751 [ 5 ] Bug #1938630 - include new bootloaders on Fedora 34 install media so UEFI Secure Boot enabled systems can boot from them https://bugzilla.redhat.com/show_bug.cgi?id=1938630 [ 6 ] Bug #1948432 - efi: Failed to lookup EFI memory descriptor for 0x000000003a572000 https://bugzilla.redhat.com/show_bug.cgi?id=1948432

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-cab258a413' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
Name : shim
Product : Fedora 34
Version : 15.4
Release : 4
URL : https://github.com/rhboot/shim/
Summary : First-stage UEFI bootloader

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