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RHEL 7.6: RHSA-2021-2204-01 Important: glib2 Integer Overflow Issue

red hat
Calendar Grey June 2, 2021
Dist Redhat Esm H88
Urgent glibc security patch for Red Hat Enterprise Linux 7.6 tackling buffer overflow vulnerability, classified as Essential.
An update for glib2 is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

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

Summary

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.

Topics%20covered

Topics Covered

security advisory software update security fix Red Hat Enterprise Linux integer overflow glib2 Important

References

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

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: glib2-2.56.1-5.el7_6.src.rpm
x86_64: glib2-2.56.1-5.el7_6.i686.rpm glib2-2.56.1-5.el7_6.x86_64.rpm glib2-debuginfo-2.56.1-5.el7_6.i686.rpm glib2-debuginfo-2.56.1-5.el7_6.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
noarch: glib2-doc-2.56.1-5.el7_6.noarch.rpm
x86_64: glib2-debuginfo-2.56.1-5.el7_6.i686.rpm glib2-debuginfo-2.56.1-5.el7_6.x86_64.rpm glib2-devel-2.56.1-5.el7_6.i686.rpm glib2-devel-2.56.1-5.el7_6.x86_64.rpm glib2-fam-2.56.1-5.el7_6.x86_64.rpm glib2-static-2.56.1-5.el7_6.i686.rpm glib2-static-2.56.1-5.el7_6.x86_64.rpm glib2-tests-2.56.1-5.el7_6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.6):
Source: glib2-2.56.1-5.el7_6.src.rpm
ppc64: glib2-2.56.1-5.el7_6.ppc.rpm glib2-2.56.1-5.el7_6.ppc64.rpm glib2-debuginfo-2.56.1-5.el7_6.ppc.rpm glib2-debuginfo-2.56.1-5.el7_6.ppc64.rpm glib2-devel-2.56.1-5.el7_6.ppc.rpm glib2-devel-2.56.1-5.el7_6.ppc64.rpm
ppc64le: glib2-2.56.1-5.el7_6.ppc64le.rpm glib2-debuginfo-2.56.1-5.el7_6.ppc64le.rpm glib2-devel-2.56.1-5.el7_6.ppc64le.rpm
s390x: glib2-2.56.1-5.el7_6.s390.rpm glib2-2.56.1-5.el7_6.s390x.rpm glib2-debuginfo-2.56.1-5.el7_6.s390.rpm glib2-debuginfo-2.56.1-5.el7_6.s390x.rpm glib2-devel-2.56.1-5.el7_6.s390.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2204-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2204
Issue date: 2021-06-02

Topic

An update for glib2 is now available for Red Hat Enterprise Linux 7.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory software update security fix Red Hat Enterprise Linux integer overflow glib2 Important

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - noarch, x86_64

Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le, s390x

Bugs Fixed

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

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