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Red Hat Enterprise Linux 8 RHSA-2021-2170-01 Important Integer Overflow

red hat
Calendar Grey June 1, 2021
Dist Redhat Esm H88
The recent glib2 update for Red Hat Enterprise Linux 8 resolves critical security vulnerabilities and several bug issues. For detailed information, please read further.
An update for glib2 is now available for Red Hat Enterprise Linux 8

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.
Bug Fix(es):
* Refcounting issue causes crashes and slow workarounds (BZ#1953553)

Topics%20covered

Topics Covered

security advisory red hat bug fix important integer overflow red hat enterprise linux glib2

References

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

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: glib2-2.56.4-10.el8_4.src.rpm
aarch64: glib2-2.56.4-10.el8_4.aarch64.rpm glib2-debuginfo-2.56.4-10.el8_4.aarch64.rpm glib2-debugsource-2.56.4-10.el8_4.aarch64.rpm glib2-devel-2.56.4-10.el8_4.aarch64.rpm glib2-devel-debuginfo-2.56.4-10.el8_4.aarch64.rpm glib2-fam-2.56.4-10.el8_4.aarch64.rpm glib2-fam-debuginfo-2.56.4-10.el8_4.aarch64.rpm glib2-tests-2.56.4-10.el8_4.aarch64.rpm glib2-tests-debuginfo-2.56.4-10.el8_4.aarch64.rpm
ppc64le: glib2-2.56.4-10.el8_4.ppc64le.rpm glib2-debuginfo-2.56.4-10.el8_4.ppc64le.rpm glib2-debugsource-2.56.4-10.el8_4.ppc64le.rpm glib2-devel-2.56.4-10.el8_4.ppc64le.rpm glib2-devel-debuginfo-2.56.4-10.el8_4.ppc64le.rpm glib2-fam-2.56.4-10.el8_4.ppc64le.rpm glib2-fam-debuginfo-2.56.4-10.el8_4.ppc64le.rpm glib2-tests-2.56.4-10.el8_4.ppc64le.rpm glib2-tests-debuginfo-2.56.4-10.el8_4.ppc64le.rpm
s390x: glib2-2.56.4-10.el8_4.s390x.rpm glib2-debuginfo-2.56.4-10.el8_4.s390x.rpm glib2-debugsource-2.56.4-10.el8_4.s390x.rpm glib2-devel-2.56.4-10.el8_4.s390x.rpm glib2-devel-debuginfo-2.56.4-10.el8_4.s390x.rpm glib2-fam-2.56.4-10.el8_4.s390x.rpm glib2-fam-debuginfo-2.56.4-10.el8_4.s390x.rpm glib2-tests-2.56.4-10.el8_4.s390x.rpm glib2-tests-debuginfo-2.56.4-10.el8_4.s390x.rpm
x86_64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2170-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2170
Issue date: 2021-06-01

Topic

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 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 red hat bug fix important integer overflow red hat enterprise linux glib2

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

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

1953553 - Refcounting issue causes crashes and slow workarounds [rhel-8.4.0.z]

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