An update for glib2 is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions.

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====================================================================                   Red Hat Security Advisory

Synopsis:          Important: glib2 security update
Advisory ID:       RHSA-2021:2174-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2174
Issue date:        2021-06-01
CVE Names:         CVE-2021-27219 
====================================================================
1. Summary:

An update for glib2 is now available for Red Hat Enterprise Linux 7.4
Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
Solutions.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - x86_64

3. Description:

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.

Security Fix(es):

* glib: integer overflow in g_bytes_new function on 64-bit platforms due to
an implicit cast from 64 bits to 32 bits (CVE-2021-27219)

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.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1929858 - CVE-2021-27219 glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
glib2-2.50.3-4.el7_4.src.rpm

x86_64:
glib2-2.50.3-4.el7_4.i686.rpm
glib2-2.50.3-4.el7_4.x86_64.rpm
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-devel-2.50.3-4.el7_4.i686.rpm
glib2-devel-2.50.3-4.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.4):

Source:
glib2-2.50.3-4.el7_4.src.rpm

ppc64le:
glib2-2.50.3-4.el7_4.ppc64le.rpm
glib2-debuginfo-2.50.3-4.el7_4.ppc64le.rpm
glib2-devel-2.50.3-4.el7_4.ppc64le.rpm

x86_64:
glib2-2.50.3-4.el7_4.i686.rpm
glib2-2.50.3-4.el7_4.x86_64.rpm
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-devel-2.50.3-4.el7_4.i686.rpm
glib2-devel-2.50.3-4.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.4):

Source:
glib2-2.50.3-4.el7_4.src.rpm

x86_64:
glib2-2.50.3-4.el7_4.i686.rpm
glib2-2.50.3-4.el7_4.x86_64.rpm
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-devel-2.50.3-4.el7_4.i686.rpm
glib2-devel-2.50.3-4.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

noarch:
glib2-doc-2.50.3-4.el7_4.noarch.rpm

x86_64:
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-fam-2.50.3-4.el7_4.x86_64.rpm
glib2-static-2.50.3-4.el7_4.i686.rpm
glib2-static-2.50.3-4.el7_4.x86_64.rpm
glib2-tests-2.50.3-4.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.4):

noarch:
glib2-doc-2.50.3-4.el7_4.noarch.rpm

ppc64le:
glib2-debuginfo-2.50.3-4.el7_4.ppc64le.rpm
glib2-fam-2.50.3-4.el7_4.ppc64le.rpm
glib2-static-2.50.3-4.el7_4.ppc64le.rpm
glib2-tests-2.50.3-4.el7_4.ppc64le.rpm

x86_64:
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-fam-2.50.3-4.el7_4.x86_64.rpm
glib2-static-2.50.3-4.el7_4.i686.rpm
glib2-static-2.50.3-4.el7_4.x86_64.rpm
glib2-tests-2.50.3-4.el7_4.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.4):

noarch:
glib2-doc-2.50.3-4.el7_4.noarch.rpm

x86_64:
glib2-debuginfo-2.50.3-4.el7_4.i686.rpm
glib2-debuginfo-2.50.3-4.el7_4.x86_64.rpm
glib2-fam-2.50.3-4.el7_4.x86_64.rpm
glib2-static-2.50.3-4.el7_4.i686.rpm
glib2-static-2.50.3-4.el7_4.x86_64.rpm
glib2-tests-2.50.3-4.el7_4.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key

7. References:

https://access.redhat.com/security/cve/CVE-2021-27219
https://access.redhat.com/security/updates/classification#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2021 Red Hat, Inc.
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