Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Containers
  • Support Cases
  • Products & Services

    Products

    Support

    • Production Support
    • Development Support
    • Product Life Cycles

    Services

    • Consulting
    • Technical Account Management
    • Training & Certifications

    Documentation

    • Red Hat Enterprise Linux
    • Red Hat JBoss Enterprise Application Platform
    • Red Hat OpenStack Platform
    • Red Hat OpenShift Container Platform
    All Documentation

    Ecosystem Catalog

    • Red Hat Partner Ecosystem
    • Partner Resources
  • Tools

    Tools

    • Troubleshoot a product issue
    • Packages
    • Errata

    Customer Portal Labs

    • Configuration
    • Deployment
    • Security
    • Troubleshoot
    All labs

    Red Hat Insights

    Increase visibility into IT operations to detect and resolve technical issues before they impact your business.

    Learn More
    Go to Insights
  • Security

    Red Hat Product Security Center

    Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities.

    Product Security Center

    Security Updates

    • Security Advisories
    • Red Hat CVE Database
    • Security Labs

    Keep your systems secure with Red Hat's specialized responses to security vulnerabilities.

    View Responses

    Resources

    • Security Blog
    • Security Measurement
    • Severity Ratings
    • Backporting Policies
    • Product Signing (GPG) Keys
  • Community

    Customer Portal Community

    • Discussions
    • Private Groups
    Community Activity

    Customer Events

    • Red Hat Convergence
    • Red Hat Summit

    Stories

    • Red Hat Subscription Value
    • You Asked. We Acted.
    • Open Source Communities
Or troubleshoot an issue.

Select Your Language

  • English
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Virtualization
  • Red Hat Identity Management
  • Red Hat Directory Server
  • Red Hat Certificate System
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Update Infrastructure
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat CloudForms
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Online
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • Red Hat CodeReady Workspaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Thorntail
  • Red Hat build of Eclipse Vert.x
  • Red Hat build of OpenJDK
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Integration
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
  • Red Hat JBoss Data Virtualization
  • Red Hat Process Automation
  • Red Hat Process Automation Manager
  • Red Hat Decision Manager
All Products
Red Hat Product Errata RHSA-2021:0659 - Security Advisory
Issued:
2021-02-24
Updated:
2021-02-24

RHSA-2021:0659 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Critical: firefox security update

Type/Severity

Security Advisory: Critical

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 78.8.0 ESR.

Security Fix(es):

  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23968)
  • Mozilla: Content Security Policy violation report could have contained the destination of a redirect (CVE-2021-23969)
  • Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8 (CVE-2021-23978)
  • Mozilla: MediaError message property could have leaked information about cross-origin resources (CVE-2021-23973)

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.

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.

Affected Products

  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.1 x86_64
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.1 s390x
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1 ppc64le
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.1 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1 x86_64

Fixes

  • BZ - 1932109 - CVE-2021-23969 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
  • BZ - 1932110 - CVE-2021-23968 Mozilla: Content Security Policy violation report could have contained the destination of a redirect
  • BZ - 1932111 - CVE-2021-23973 Mozilla: MediaError message property could have leaked information about cross-origin resources
  • BZ - 1932112 - CVE-2021-23978 Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

CVEs

  • CVE-2021-23968
  • CVE-2021-23969
  • CVE-2021-23973
  • CVE-2021-23978

References

  • https://access.redhat.com/security/updates/classification/#critical
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
x86_64
firefox-78.8.0-1.el8_1.x86_64.rpm SHA-256: 9674b2a6006fccce8327854c6c828790af11e2aff101e30eecc4ebf324ee32fa
firefox-debuginfo-78.8.0-1.el8_1.x86_64.rpm SHA-256: a42fbe874e19e18e65ebab443139a33062cbd80f50ccb6de1663e4b1c92cede2
firefox-debugsource-78.8.0-1.el8_1.x86_64.rpm SHA-256: e9b19363d3fd232e83b3494ce6391e10687d3274d780c8b9e148fecbbfc9144e

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
s390x
firefox-78.8.0-1.el8_1.s390x.rpm SHA-256: 78c69a073439fd6f9f30b1e7cf1f3104a6d94373bf661f06af6d5ccbc3fa0956
firefox-debuginfo-78.8.0-1.el8_1.s390x.rpm SHA-256: 35237fd429005d14892e68a8cfaef378339fa3c4f70df7a5cf8f720a27f384d4
firefox-debugsource-78.8.0-1.el8_1.s390x.rpm SHA-256: ea2729604dc8fdb84ae82e2885fb64a9a4d8f48700f5d0cdd6dd96317224ca9c

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
ppc64le
firefox-78.8.0-1.el8_1.ppc64le.rpm SHA-256: 1464fe33947b55667aae84ef72c3827942527956c9208850bd9c8fdb1978db59
firefox-debuginfo-78.8.0-1.el8_1.ppc64le.rpm SHA-256: d6eba55d61ad05133b26f739625e11d4ad38cc45da679eb9b5377dffcc4406bc
firefox-debugsource-78.8.0-1.el8_1.ppc64le.rpm SHA-256: 7252e0d12f5177e1926654a6c83fb8e4f64b5144d43156dca7259419d9a277ef

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
aarch64
firefox-78.8.0-1.el8_1.aarch64.rpm SHA-256: 48e85925caccad07de1c12605f77df45d826d7c31f3a65c07301fc9728e19468
firefox-debuginfo-78.8.0-1.el8_1.aarch64.rpm SHA-256: 9ef444db9bc2aa166f5c832b692da7c5625ae3fa3dc1793a95ba7f22e42a5ca4
firefox-debugsource-78.8.0-1.el8_1.aarch64.rpm SHA-256: 1045c22dc626be5819dc167b75ab859c7418e663cea2a15be1ea923a736e74c4

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
ppc64le
firefox-78.8.0-1.el8_1.ppc64le.rpm SHA-256: 1464fe33947b55667aae84ef72c3827942527956c9208850bd9c8fdb1978db59
firefox-debuginfo-78.8.0-1.el8_1.ppc64le.rpm SHA-256: d6eba55d61ad05133b26f739625e11d4ad38cc45da679eb9b5377dffcc4406bc
firefox-debugsource-78.8.0-1.el8_1.ppc64le.rpm SHA-256: 7252e0d12f5177e1926654a6c83fb8e4f64b5144d43156dca7259419d9a277ef

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.1

SRPM
firefox-78.8.0-1.el8_1.src.rpm SHA-256: 7397ac84ec456f98939c56af9b3080c1b32cd633ca430a62ab61343b85b2ac94
x86_64
firefox-78.8.0-1.el8_1.x86_64.rpm SHA-256: 9674b2a6006fccce8327854c6c828790af11e2aff101e30eecc4ebf324ee32fa
firefox-debuginfo-78.8.0-1.el8_1.x86_64.rpm SHA-256: a42fbe874e19e18e65ebab443139a33062cbd80f50ccb6de1663e4b1c92cede2
firefox-debugsource-78.8.0-1.el8_1.x86_64.rpm SHA-256: e9b19363d3fd232e83b3494ce6391e10687d3274d780c8b9e148fecbbfc9144e

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

About

  • Red Hat Subscription Value
  • About Red Hat
  • Red Hat Jobs
Copyright © 2022 Red Hat, Inc.
  • Privacy Statement
  • Customer Portal Terms of Use
  • All Policies and Guidelines
Red Hat Summit
Twitter