Alerts This Week
Warning Icon 1 764
Alerts This Week
Warning Icon 1 764

Red Hat Enterprise Linux 7: Firefox Important Memory Safety Risk RHSA-2021:3498-01 CVE-2021-38493

red hat
Calendar Grey September 13, 2021
Dist Redhat Esm H88
Critical announcement for Firefox users on RHEL platforms. This version addresses severe vulnerabilities affecting memory integrity to bolster protection.
An update for firefox is now available for Red Hat Enterprise Linux 7

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 security update Red Hat Enterprise Linux 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 Client (v. 7):
Source: firefox-78.14.0-1.el7_9.src.rpm
x86_64: firefox-78.14.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.14.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-78.14.0-1.el7_9.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-78.14.0-1.el7_9.src.rpm
ppc64: firefox-78.14.0-1.el7_9.ppc64.rpm firefox-debuginfo-78.14.0-1.el7_9.ppc64.rpm
ppc64le: firefox-78.14.0-1.el7_9.ppc64le.rpm firefox-debuginfo-78.14.0-1.el7_9.ppc64le.rpm
s390x: firefox-78.14.0-1.el7_9.s390x.rpm firefox-debuginfo-78.14.0-1.el7_9.s390x.rpm
x86_64: firefox-78.14.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.14.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64: firefox-78.14.0-1.el7_9.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-78.14.0-1.el7_9.src.rpm
x86_64: firefox-78.14.0-1.el7_9.x86_64.rpm firefox-debuginfo-78.14.0-1.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-78.14.0-1.el7_9.i686.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-2021:3498-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3498
Issue date: 2021-09-13

Topic

An update for firefox is now available for Red Hat Enterprise Linux 7.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 security update Red Hat Enterprise Linux important firefox memory safety

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - 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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here