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Red Hat: RHSA-2021:3496-01 Important Firefox Memory Safety Fix

red hat
Calendar Grey September 13, 2021
Dist Redhat Esm H88
New release available for Red Hat Enterprise Linux 8.2. Critical security update for Firefox to resolve memory integrity vulnerabilities.
An update for firefox is now available for Red Hat Enterprise Linux 8.2 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

After installing the update, Firefox must be restarted for the changes to take effect.

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 78.14.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 (CVE-2021-38493)
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 red hat important firefox memory safety

References

https://access.redhat.com/security/cve/CVE-2021-38493 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.2):
Source: firefox-78.14.0-1.el8_2.src.rpm
aarch64: firefox-78.14.0-1.el8_2.aarch64.rpm firefox-debuginfo-78.14.0-1.el8_2.aarch64.rpm firefox-debugsource-78.14.0-1.el8_2.aarch64.rpm
ppc64le: firefox-78.14.0-1.el8_2.ppc64le.rpm firefox-debuginfo-78.14.0-1.el8_2.ppc64le.rpm firefox-debugsource-78.14.0-1.el8_2.ppc64le.rpm
s390x: firefox-78.14.0-1.el8_2.s390x.rpm firefox-debuginfo-78.14.0-1.el8_2.s390x.rpm firefox-debugsource-78.14.0-1.el8_2.s390x.rpm
x86_64: firefox-78.14.0-1.el8_2.x86_64.rpm firefox-debuginfo-78.14.0-1.el8_2.x86_64.rpm firefox-debugsource-78.14.0-1.el8_2.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3496-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3496
Issue date: 2021-09-13

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.2Extended 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 red hat important firefox memory safety

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2002119 - CVE-2021-38493 Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1

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