A glib2 security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: glib2-2.66.8-1.fc33

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Fedora Update Notification
FEDORA-2021-a1f51fc418
2021-03-22 01:03:56.746584
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Name : glib2
Product : Fedora 33
Version : 2.66.8
Release : 1.fc33
URL :   http://www.gtk.org
Summary : A library of handy utility functions
Description :
GLib is the low-level core library that forms the basis for projects
such as GTK+ and GNOME. It provides data structure handling for C,
portability wrappers, and interfaces for such runtime functionality
as an event loop, threads, dynamic loading, and an object system.

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Update Information:

glib 2.66.8 release, fixing a security issue when using `g_file_replace()` with
`G_FILE_CREATE_REPLACE_DESTINATION`.
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ChangeLog:

* Thu Mar 18 2021 Kalev Lember - 2.66.8-1
- Update to 2.66.8
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References:

[ 1 ] Bug #1938291 - CVE-2021-28153 glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink
  https://bugzilla.redhat.com/show_bug.cgi?id=1938291
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-a1f51fc418' 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