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RedHat: RHSA-2020-2827-01 Important: Firefox Remote Code Execution Risk

red hat
Calendar Grey July 6, 2020
Dist Redhat Esm H88
Essential Firefox upgrade for Red Hat Enterprise Linux 7 tackling significant security vulnerabilities. Prompt attention advised.
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 68.10.0 ESR.
Security Fix(es):
* Mozilla: Memory corruption due to missing sign-extension for ValueTags on ARM64 (CVE-2020-12417)
* Mozilla: Information disclosure due to manipulated URL object (CVE-2020-12418)
* Mozilla: Use-after-free in nsGlobalWindowInner (CVE-2020-12419)
* Mozilla: Use-After-Free when trying to connect to a STUN server (CVE-2020-12420)
* Mozilla: Add-On updates did not respect the same certificate trust rules as software updates (CVE-2020-12421)
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 issue update red hat important firefox

References

https://access.redhat.com/security/cve/CVE-2020-12417 https://access.redhat.com/security/cve/CVE-2020-12418 https://access.redhat.com/security/cve/CVE-2020-12419 https://access.redhat.com/security/cve/CVE-2020-12420 https://access.redhat.com/security/cve/CVE-2020-12421 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: firefox-68.10.0-1.el7_8.src.rpm
x86_64: firefox-68.10.0-1.el7_8.x86_64.rpm firefox-debuginfo-68.10.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: firefox-68.10.0-1.el7_8.i686.rpm firefox-debuginfo-68.10.0-1.el7_8.i686.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: firefox-68.10.0-1.el7_8.src.rpm
ppc64: firefox-68.10.0-1.el7_8.ppc64.rpm firefox-debuginfo-68.10.0-1.el7_8.ppc64.rpm
ppc64le: firefox-68.10.0-1.el7_8.ppc64le.rpm firefox-debuginfo-68.10.0-1.el7_8.ppc64le.rpm
s390x: firefox-68.10.0-1.el7_8.s390x.rpm firefox-debuginfo-68.10.0-1.el7_8.s390x.rpm
x86_64: firefox-68.10.0-1.el7_8.x86_64.rpm firefox-debuginfo-68.10.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64: firefox-68.10.0-1.el7_8.i686.rpm firefox-debuginfo-68.10.0-1.el7_8.i686.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: firefox-68.10.0-1.el7_8.src.rpm
x86_64: firefox-68.10.0-1.el7_8.x86_64.rpm firefox-debuginfo-68.10.0-1.el7_8.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: firefox-68.10.0-1.el7_8.i686.rpm firefox-debuginfo-68.10.0-1.el7_8.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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2827-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2827
Issue date: 2020-07-06

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 issue update red hat important firefox

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

1853014 - CVE-2020-12417 Mozilla: Memory corruption due to missing sign-extension for ValueTags on ARM64

1853015 - CVE-2020-12418 Mozilla: Information disclosure due to manipulated URL object

1853016 - CVE-2020-12419 Mozilla: Use-after-free in nsGlobalWindowInner

1853017 - CVE-2020-12420 Mozilla: Use-After-Free when trying to connect to a STUN server

1853018 - CVE-2020-12421 Mozilla: Add-On updates did not respect the same certificate trust rules as software updates

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