Red Hat Security Advisory 2021-4385-03 - 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. Issues addressed include a privilege escalation vulnerability.
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Red Hat Security Advisory
Synopsis: Moderate: glib2 security and bug fix update
Advisory ID: RHSA-2021:4385-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4385
Issue date: 2021-11-09
CVE Names: CVE-2021-3800 CVE-2021-28153
====================================================================
1. Summary:
An update for glib2 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux CRB (v. 8) - aarch64, noarch, ppc64le, s390x, 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):
* glib2: Possible privilege escalation thourgh pkexec and aliases
(CVE-2021-3800)
* glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates
empty target for dangling symlink (CVE-2021-28153)
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 8.5 Release Notes linked from 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/):
1938284 - CVE-2021-3800 glib2: Possible privilege escalation thourgh pkexec and aliases
1938291 - CVE-2021-28153 glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink
1948988 - Refcounting issue causes crashes and slow workarounds
1971533 - MD5 HMAC computation should not cause glib to segfault in FIPS mode
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
glib2-2.56.4-156.el8.src.rpm
aarch64:
glib2-2.56.4-156.el8.aarch64.rpm
glib2-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-debugsource-2.56.4-156.el8.aarch64.rpm
glib2-devel-2.56.4-156.el8.aarch64.rpm
glib2-devel-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-fam-2.56.4-156.el8.aarch64.rpm
glib2-fam-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-tests-2.56.4-156.el8.aarch64.rpm
glib2-tests-debuginfo-2.56.4-156.el8.aarch64.rpm
ppc64le:
glib2-2.56.4-156.el8.ppc64le.rpm
glib2-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-debugsource-2.56.4-156.el8.ppc64le.rpm
glib2-devel-2.56.4-156.el8.ppc64le.rpm
glib2-devel-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-fam-2.56.4-156.el8.ppc64le.rpm
glib2-fam-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-tests-2.56.4-156.el8.ppc64le.rpm
glib2-tests-debuginfo-2.56.4-156.el8.ppc64le.rpm
s390x:
glib2-2.56.4-156.el8.s390x.rpm
glib2-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-debugsource-2.56.4-156.el8.s390x.rpm
glib2-devel-2.56.4-156.el8.s390x.rpm
glib2-devel-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-fam-2.56.4-156.el8.s390x.rpm
glib2-fam-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-tests-2.56.4-156.el8.s390x.rpm
glib2-tests-debuginfo-2.56.4-156.el8.s390x.rpm
x86_64:
glib2-2.56.4-156.el8.i686.rpm
glib2-2.56.4-156.el8.x86_64.rpm
glib2-debuginfo-2.56.4-156.el8.i686.rpm
glib2-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-debugsource-2.56.4-156.el8.i686.rpm
glib2-debugsource-2.56.4-156.el8.x86_64.rpm
glib2-devel-2.56.4-156.el8.i686.rpm
glib2-devel-2.56.4-156.el8.x86_64.rpm
glib2-devel-debuginfo-2.56.4-156.el8.i686.rpm
glib2-devel-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-fam-2.56.4-156.el8.x86_64.rpm
glib2-fam-debuginfo-2.56.4-156.el8.i686.rpm
glib2-fam-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-tests-2.56.4-156.el8.x86_64.rpm
glib2-tests-debuginfo-2.56.4-156.el8.i686.rpm
glib2-tests-debuginfo-2.56.4-156.el8.x86_64.rpm
Red Hat Enterprise Linux CRB (v. 8):
aarch64:
glib2-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-debugsource-2.56.4-156.el8.aarch64.rpm
glib2-devel-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-fam-debuginfo-2.56.4-156.el8.aarch64.rpm
glib2-static-2.56.4-156.el8.aarch64.rpm
glib2-tests-debuginfo-2.56.4-156.el8.aarch64.rpm
noarch:
glib2-doc-2.56.4-156.el8.noarch.rpm
ppc64le:
glib2-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-debugsource-2.56.4-156.el8.ppc64le.rpm
glib2-devel-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-fam-debuginfo-2.56.4-156.el8.ppc64le.rpm
glib2-static-2.56.4-156.el8.ppc64le.rpm
glib2-tests-debuginfo-2.56.4-156.el8.ppc64le.rpm
s390x:
glib2-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-debugsource-2.56.4-156.el8.s390x.rpm
glib2-devel-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-fam-debuginfo-2.56.4-156.el8.s390x.rpm
glib2-static-2.56.4-156.el8.s390x.rpm
glib2-tests-debuginfo-2.56.4-156.el8.s390x.rpm
x86_64:
glib2-debuginfo-2.56.4-156.el8.i686.rpm
glib2-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-debugsource-2.56.4-156.el8.i686.rpm
glib2-debugsource-2.56.4-156.el8.x86_64.rpm
glib2-devel-debuginfo-2.56.4-156.el8.i686.rpm
glib2-devel-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-fam-debuginfo-2.56.4-156.el8.i686.rpm
glib2-fam-debuginfo-2.56.4-156.el8.x86_64.rpm
glib2-static-2.56.4-156.el8.i686.rpm
glib2-static-2.56.4-156.el8.x86_64.rpm
glib2-tests-debuginfo-2.56.4-156.el8.i686.rpm
glib2-tests-debuginfo-2.56.4-156.el8.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-2021-3800
https://access.redhat.com/security/cve/CVE-2021-28153
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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