glib2, ibus security update

CentOS Errata and Security Advisory CESA-2020:3978

GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures.

The Intelligent Input Bus (IBus) is an input method framework for multilingual input in Unix-like operating systems.

Security Fix(es):

• glib2: file_copy_fallback in gio/gfile.c in GNOME GLib does not properly restrict file permissions while a copy operation is in progress (CVE-2019-12450)

• ibus: missing authorization allows local attacker to access the input bus of another user (CVE-2019-14822)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.9 Release Notes linked from the References section.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2020-October/032782.html
https://lists.centos.org/pipermail/centos-cr-announce/2020-October/032801.html

Affected packages:
glib2
glib2-devel
glib2-doc
glib2-fam
glib2-static
glib2-tests
ibus
ibus-devel
ibus-devel-docs
ibus-gtk2
ibus-gtk3
ibus-libs
ibus-pygtk2
ibus-setup

Upstream details at:
https://access.redhat.com/errata/RHSA-2020:3978