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Critical Update for Firefox Memory Safety in Red Hat Enterprise Linux 7

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Calendar Grey June 2, 2021
Scroller Redhat
An urgent security patch for Firefox on CentOS 7 resolves vulnerabilities related to memory management, ensuring better security measures.
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 78.11.0 ESR.
Security Fix(es):
* Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11 (CVE-2021-29967)
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 update critical firefox red hat enterprise linux memory safety

References

https://access.redhat.com/security/cve/CVE-2021-29967 https://access.redhat.com/security/updates/classification#critical

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: firefox-78.11.0-3.el7_9.src.rpm
x86_64: firefox-78.11.0-3.el7_9.x86_64.rpm firefox-debuginfo-78.11.0-3.el7_9.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-78.11.0-3.el7_9.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-78.11.0-3.el7_9.src.rpm
ppc64: firefox-78.11.0-3.el7_9.ppc64.rpm firefox-debuginfo-78.11.0-3.el7_9.ppc64.rpm
ppc64le: firefox-78.11.0-3.el7_9.ppc64le.rpm firefox-debuginfo-78.11.0-3.el7_9.ppc64le.rpm
s390x: firefox-78.11.0-3.el7_9.s390x.rpm firefox-debuginfo-78.11.0-3.el7_9.s390x.rpm
x86_64: firefox-78.11.0-3.el7_9.x86_64.rpm firefox-debuginfo-78.11.0-3.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64: firefox-78.11.0-3.el7_9.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-78.11.0-3.el7_9.src.rpm
x86_64: firefox-78.11.0-3.el7_9.x86_64.rpm firefox-debuginfo-78.11.0-3.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-78.11.0-3.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
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2206-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2206
Issue date: 2021-06-02

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 Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update critical firefox red hat enterprise linux 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

1966831 - CVE-2021-29967 Mozilla: Memory safety bugs fixed in Firefox 89 and Firefox ESR 78.11

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