[SECURITY] Fedora 34 Update: grub2-2.06-9.fc34
--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-73d63662b0
2021-12-26 01:09:10.067800
--------------------------------------------------------------------------------
Name : grub2
Product : Fedora 34
Version : 2.06
Release : 9.fc34
URL : http://www.gnu.org/software/grub/
Summary : Bootloader with support for Linux, Multiboot and more
Description :
The GRand Unified Bootloader (GRUB) is a highly configurable and
customizable bootloader with modular architecture. It supports a rich
variety of kernel formats, file systems, computer architectures and
hardware devices.
--------------------------------------------------------------------------------
Update Information:
- restore umask for grub.cfg (CVE-2021-3981) - re-run signing after
infrastructure fix
--------------------------------------------------------------------------------
ChangeLog:
* Fri Dec 10 2021 Robbie Harwood <rharwood(a)redhat.com> - 2.06-9
- Bump to re-run signing (no code changes)
* Thu Dec 9 2021 Robbie Harwood <rharwood(a)redhat.com> - 2.06-8
- Restore grub.cfg umask (CVE-2021-3981)
- Resolves: rhbz#2030358
--------------------------------------------------------------------------------
References:
[ 1 ] Bug #2030358 - CVE-2021-3981 grub2: Incorrect permission in grub.cfg allow
unprivileged user to read the file content [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2030358
[ 2 ] Bug #2030940 - Booting with grub2-2.06-9.fc35 and UEFI Secure Boot enabled
resulted in Error: Verification Failed: (0x1A) Security Violation
https://bugzilla.redhat.com/show_bug.cgi?id=2030940
--------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-73d63662b0' at the command
line. For more information, refer to the dnf documentation available at
http://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
--------------------------------------------------------------------------------